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Finding the Fourth Proportional to 385,634.52, 532,038.78 and 251,265.24

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Solution

The fourth proportional to 385,634.52, 532,038.78 and 251,265.24 is: 346,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,634.52 : 532,038.78 = 251,265.24 : x
  2. Step 2: Convert to fraction form
    385,634.52/532,038.78 = 251,265.24/x
  3. Step 3: Cross multiply
    385,634.52x = 532,038.78 × 251,265.24
  4. Step 4: Simplify right side
    385,634.52x = 133,682,851,746.01
  5. Step 5: Solve for x
    x = 133,682,851,746.01/385,634.52
  6. Step 6: Final answer
    x = 346,656.86

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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.