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Finding the Fourth Proportional to 472,099.86, 708,359.13 and 247,406.88

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Solution

The fourth proportional to 472,099.86, 708,359.13 and 247,406.88 is: 371,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,099.86 : 708,359.13 = 247,406.88 : x
  2. Step 2: Convert to fraction form
    472,099.86/708,359.13 = 247,406.88/x
  3. Step 3: Cross multiply
    472,099.86x = 708,359.13 × 247,406.88
  4. Step 4: Simplify right side
    472,099.86x = 175,252,922,272.81
  5. Step 5: Solve for x
    x = 175,252,922,272.81/472,099.86
  6. Step 6: Final answer
    x = 371,220.03

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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.