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Finding the Fourth Proportional to 704,475.92, 972,179.68 and 382,188.36

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Solution

The fourth proportional to 704,475.92, 972,179.68 and 382,188.36 is: 527,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,475.92 : 972,179.68 = 382,188.36 : x
  2. Step 2: Convert to fraction form
    704,475.92/972,179.68 = 382,188.36/x
  3. Step 3: Cross multiply
    704,475.92x = 972,179.68 × 382,188.36
  4. Step 4: Simplify right side
    704,475.92x = 371,555,757,524.53
  5. Step 5: Solve for x
    x = 371,555,757,524.53/704,475.92
  6. Step 6: Final answer
    x = 527,421.52

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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.