Home / 698,745.80-1,048,118.70-610,172.30

Finding the Fourth Proportional to 698,745.80, 1,048,118.70 and 610,172.30

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Solution

The fourth proportional to 698,745.80, 1,048,118.70 and 610,172.30 is: 915,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,745.80 : 1,048,118.70 = 610,172.30 : x
  2. Step 2: Convert to fraction form
    698,745.80/1,048,118.70 = 610,172.30/x
  3. Step 3: Cross multiply
    698,745.80x = 1,048,118.70 × 610,172.30
  4. Step 4: Simplify right side
    698,745.80x = 639,532,997,852.01
  5. Step 5: Solve for x
    x = 639,532,997,852.01/698,745.80
  6. Step 6: Final answer
    x = 915,258.45

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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.