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Finding the Fourth Proportional to 704,847.11, 972,689.49 and 382,557.21

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Solution

The fourth proportional to 704,847.11, 972,689.49 and 382,557.21 is: 527,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,847.11 : 972,689.49 = 382,557.21 : x
  2. Step 2: Convert to fraction form
    704,847.11/972,689.49 = 382,557.21/x
  3. Step 3: Cross multiply
    704,847.11x = 972,689.49 × 382,557.21
  4. Step 4: Simplify right side
    704,847.11x = 372,109,377,490.72
  5. Step 5: Solve for x
    x = 372,109,377,490.72/704,847.11
  6. Step 6: Final answer
    x = 527,929.21

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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.