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Finding the Fourth Proportional to 408,498.93, 563,332.73 and 272,538.41

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Solution

The fourth proportional to 408,498.93, 563,332.73 and 272,538.41 is: 375,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,498.93 : 563,332.73 = 272,538.41 : x
  2. Step 2: Convert to fraction form
    408,498.93/563,332.73 = 272,538.41/x
  3. Step 3: Cross multiply
    408,498.93x = 563,332.73 × 272,538.41
  4. Step 4: Simplify right side
    408,498.93x = 153,529,802,355.80
  5. Step 5: Solve for x
    x = 153,529,802,355.80/408,498.93
  6. Step 6: Final answer
    x = 375,838.93

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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.