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Finding the Fourth Proportional to 719,359.17, 992,715.71 and 397,069.35

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Solution

The fourth proportional to 719,359.17, 992,715.71 and 397,069.35 is: 547,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,359.17 : 992,715.71 = 397,069.35 : x
  2. Step 2: Convert to fraction form
    719,359.17/992,715.71 = 397,069.35/x
  3. Step 3: Cross multiply
    719,359.17x = 992,715.71 × 397,069.35
  4. Step 4: Simplify right side
    719,359.17x = 394,176,981,704.49
  5. Step 5: Solve for x
    x = 394,176,981,704.49/719,359.17
  6. Step 6: Final answer
    x = 547,955.73

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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.