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Finding the Fourth Proportional to 385,774.47, 532,253.61 and 249,592.72

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Solution

The fourth proportional to 385,774.47, 532,253.61 and 249,592.72 is: 344,363.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,774.47 : 532,253.61 = 249,592.72 : x
  2. Step 2: Convert to fraction form
    385,774.47/532,253.61 = 249,592.72/x
  3. Step 3: Cross multiply
    385,774.47x = 532,253.61 × 249,592.72
  4. Step 4: Simplify right side
    385,774.47x = 132,846,623,718.12
  5. Step 5: Solve for x
    x = 132,846,623,718.12/385,774.47
  6. Step 6: Final answer
    x = 344,363.44

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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.