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Finding the Fourth Proportional to 599,103,672.70, 898,655,509.05 and 392,479,411.90

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Solution

The fourth proportional to 599,103,672.70, 898,655,509.05 and 392,479,411.90 is: 588,719,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,103,672.70 : 898,655,509.05 = 392,479,411.90 : x
  2. Step 2: Convert to fraction form
    599,103,672.70/898,655,509.05 = 392,479,411.90/x
  3. Step 3: Cross multiply
    599,103,672.70x = 898,655,509.05 × 392,479,411.90
  4. Step 4: Simplify right side
    599,103,672.70x = 352,703,785,692,639,104
  5. Step 5: Solve for x
    x = 352,703,785,692,639,104/599,103,672.70
  6. Step 6: Final answer
    x = 588,719,117.85

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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.