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Finding the Fourth Proportional to 508,400.68, 701,569.45 and 278,952.25

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Solution

The fourth proportional to 508,400.68, 701,569.45 and 278,952.25 is: 384,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,400.68 : 701,569.45 = 278,952.25 : x
  2. Step 2: Convert to fraction form
    508,400.68/701,569.45 = 278,952.25/x
  3. Step 3: Cross multiply
    508,400.68x = 701,569.45 × 278,952.25
  4. Step 4: Simplify right side
    508,400.68x = 195,704,371,706.15
  5. Step 5: Solve for x
    x = 195,704,371,706.15/508,400.68
  6. Step 6: Final answer
    x = 384,941.21

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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.