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Finding the Fourth Proportional to 621,262.97, 930,528.46 and 513,424.73

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Solution

The fourth proportional to 621,262.97, 930,528.46 and 513,424.73 is: 769,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,262.97 : 930,528.46 = 513,424.73 : x
  2. Step 2: Convert to fraction form
    621,262.97/930,528.46 = 513,424.73/x
  3. Step 3: Cross multiply
    621,262.97x = 930,528.46 × 513,424.73
  4. Step 4: Simplify right side
    621,262.97x = 477,756,323,332.82
  5. Step 5: Solve for x
    x = 477,756,323,332.82/621,262.97
  6. Step 6: Final answer
    x = 769,008.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.