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Finding the Fourth Proportional to 351,549.48, 527,320.26 and 85,312.92

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Solution

The fourth proportional to 351,549.48, 527,320.26 and 85,312.92 is: 127,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,549.48 : 527,320.26 = 85,312.92 : x
  2. Step 2: Convert to fraction form
    351,549.48/527,320.26 = 85,312.92/x
  3. Step 3: Cross multiply
    351,549.48x = 527,320.26 × 85,312.92
  4. Step 4: Simplify right side
    351,549.48x = 44,987,231,155.76
  5. Step 5: Solve for x
    x = 44,987,231,155.76/351,549.48
  6. Step 6: Final answer
    x = 127,968.42

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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.