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Finding the Fourth Proportional to 1,093,869,728.40, 1,640,804,592.60 and 1,055,649,133.20

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Solution

The fourth proportional to 1,093,869,728.40, 1,640,804,592.60 and 1,055,649,133.20 is: 1,583,473,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,869,728.40 : 1,640,804,592.60 = 1,055,649,133.20 : x
  2. Step 2: Convert to fraction form
    1,093,869,728.40/1,640,804,592.60 = 1,055,649,133.20/x
  3. Step 3: Cross multiply
    1,093,869,728.40x = 1,640,804,592.60 × 1,055,649,133.20
  4. Step 4: Simplify right side
    1,093,869,728.40x = 1,732,113,945,928,769,024
  5. Step 5: Solve for x
    x = 1,732,113,945,928,769,024/1,093,869,728.40
  6. Step 6: Final answer
    x = 1,583,473,699.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.