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Finding the Fourth Proportional to 531,715.80, 797,300.10 and 157,690.20

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Solution

The fourth proportional to 531,715.80, 797,300.10 and 157,690.20 is: 236,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,715.80 : 797,300.10 = 157,690.20 : x
  2. Step 2: Convert to fraction form
    531,715.80/797,300.10 = 157,690.20/x
  3. Step 3: Cross multiply
    531,715.80x = 797,300.10 × 157,690.20
  4. Step 4: Simplify right side
    531,715.80x = 125,726,412,229.02
  5. Step 5: Solve for x
    x = 125,726,412,229.02/531,715.80
  6. Step 6: Final answer
    x = 236,454.16

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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.