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Finding the Fourth Proportional to 698,099.64, 963,272.55 and 392,117.41

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Solution

The fourth proportional to 698,099.64, 963,272.55 and 392,117.41 is: 541,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,099.64 : 963,272.55 = 392,117.41 : x
  2. Step 2: Convert to fraction form
    698,099.64/963,272.55 = 392,117.41/x
  3. Step 3: Cross multiply
    698,099.64x = 963,272.55 × 392,117.41
  4. Step 4: Simplify right side
    698,099.64x = 377,715,937,430.10
  5. Step 5: Solve for x
    x = 377,715,937,430.10/698,099.64
  6. Step 6: Final answer
    x = 541,063.07

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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.