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Finding the Fourth Proportional to 472,117.95, 708,386.15 and 247,424.91

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Solution

The fourth proportional to 472,117.95, 708,386.15 and 247,424.91 is: 371,247.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,117.95 : 708,386.15 = 247,424.91 : x
  2. Step 2: Convert to fraction form
    472,117.95/708,386.15 = 247,424.91/x
  3. Step 3: Cross multiply
    472,117.95x = 708,386.15 × 247,424.91
  4. Step 4: Simplify right side
    472,117.95x = 175,272,378,171.87
  5. Step 5: Solve for x
    x = 175,272,378,171.87/472,117.95
  6. Step 6: Final answer
    x = 371,247.01

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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.