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Finding the Fourth Proportional to 408,493.68, 563,325.48 and 272,533.16

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Solution

The fourth proportional to 408,493.68, 563,325.48 and 272,533.16 is: 375,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,493.68 : 563,325.48 = 272,533.16 : x
  2. Step 2: Convert to fraction form
    408,493.68/563,325.48 = 272,533.16/x
  3. Step 3: Cross multiply
    408,493.68x = 563,325.48 × 272,533.16
  4. Step 4: Simplify right side
    408,493.68x = 153,524,870,356.29
  5. Step 5: Solve for x
    x = 153,524,870,356.29/408,493.68
  6. Step 6: Final answer
    x = 375,831.69

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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.