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Finding the Fourth Proportional to 671,572.89, 926,620.56 and 563,115.92

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Solution

The fourth proportional to 671,572.89, 926,620.56 and 563,115.92 is: 776,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,572.89 : 926,620.56 = 563,115.92 : x
  2. Step 2: Convert to fraction form
    671,572.89/926,620.56 = 563,115.92/x
  3. Step 3: Cross multiply
    671,572.89x = 926,620.56 × 563,115.92
  4. Step 4: Simplify right side
    671,572.89x = 521,794,784,502.21
  5. Step 5: Solve for x
    x = 521,794,784,502.21/671,572.89
  6. Step 6: Final answer
    x = 776,974.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.