Home / 411,140.10-616,710.15-145,200.90

Finding the Fourth Proportional to 411,140.10, 616,710.15 and 145,200.90

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Solution

The fourth proportional to 411,140.10, 616,710.15 and 145,200.90 is: 217,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,140.10 : 616,710.15 = 145,200.90 : x
  2. Step 2: Convert to fraction form
    411,140.10/616,710.15 = 145,200.90/x
  3. Step 3: Cross multiply
    411,140.10x = 616,710.15 × 145,200.90
  4. Step 4: Simplify right side
    411,140.10x = 89,546,868,819.14
  5. Step 5: Solve for x
    x = 89,546,868,819.14/411,140.10
  6. Step 6: Final answer
    x = 217,801.35

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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.