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Finding the Fourth Proportional to 438,312.96, 657,354.24 and 157,777.92

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Solution

The fourth proportional to 438,312.96, 657,354.24 and 157,777.92 is: 236,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,312.96 : 657,354.24 = 157,777.92 : x
  2. Step 2: Convert to fraction form
    438,312.96/657,354.24 = 157,777.92/x
  3. Step 3: Cross multiply
    438,312.96x = 657,354.24 × 157,777.92
  4. Step 4: Simplify right side
    438,312.96x = 103,715,984,690.38
  5. Step 5: Solve for x
    x = 103,715,984,690.38/438,312.96
  6. Step 6: Final answer
    x = 236,625.41

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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.