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Finding the Fourth Proportional to 704,474.92, 972,178.30 and 382,187.36

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Solution

The fourth proportional to 704,474.92, 972,178.30 and 382,187.36 is: 527,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,474.92 : 972,178.30 = 382,187.36 : x
  2. Step 2: Convert to fraction form
    704,474.92/972,178.30 = 382,187.36/x
  3. Step 3: Cross multiply
    704,474.92x = 972,178.30 × 382,187.36
  4. Step 4: Simplify right side
    704,474.92x = 371,554,260,834.47
  5. Step 5: Solve for x
    x = 371,554,260,834.47/704,474.92
  6. Step 6: Final answer
    x = 527,420.14

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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.