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Finding the Fourth Proportional to 1,766,541.40, 2,649,812.10 and 436,845.40

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Solution

The fourth proportional to 1,766,541.40, 2,649,812.10 and 436,845.40 is: 655,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,541.40 : 2,649,812.10 = 436,845.40 : x
  2. Step 2: Convert to fraction form
    1,766,541.40/2,649,812.10 = 436,845.40/x
  3. Step 3: Cross multiply
    1,766,541.40x = 2,649,812.10 × 436,845.40
  4. Step 4: Simplify right side
    1,766,541.40x = 1,157,558,226,749.34
  5. Step 5: Solve for x
    x = 1,157,558,226,749.34/1,766,541.40
  6. Step 6: Final answer
    x = 655,268.10

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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.