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Finding the Fourth Proportional to 704,882.07, 972,711.20 and 382,585.31

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Solution

The fourth proportional to 704,882.07, 972,711.20 and 382,585.31 is: 527,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,882.07 : 972,711.20 = 382,585.31 : x
  2. Step 2: Convert to fraction form
    704,882.07/972,711.20 = 382,585.31/x
  3. Step 3: Cross multiply
    704,882.07x = 972,711.20 × 382,585.31
  4. Step 4: Simplify right side
    704,882.07x = 372,145,009,215.99
  5. Step 5: Solve for x
    x = 372,145,009,215.99/704,882.07
  6. Step 6: Final answer
    x = 527,953.58

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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.