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Finding the Fourth Proportional to 719,532.91, 992,956.89 and 397,243.63

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Solution

The fourth proportional to 719,532.91, 992,956.89 and 397,243.63 is: 548,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,532.91 : 992,956.89 = 397,243.63 : x
  2. Step 2: Convert to fraction form
    719,532.91/992,956.89 = 397,243.63/x
  3. Step 3: Cross multiply
    719,532.91x = 992,956.89 × 397,243.63
  4. Step 4: Simplify right side
    719,532.91x = 394,445,799,417.11
  5. Step 5: Solve for x
    x = 394,445,799,417.11/719,532.91
  6. Step 6: Final answer
    x = 548,197.02

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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.