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Finding the Fourth Proportional to 466,865.10, 644,265.36 and 262,915.20

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Solution

The fourth proportional to 466,865.10, 644,265.36 and 262,915.20 is: 362,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,865.10 : 644,265.36 = 262,915.20 : x
  2. Step 2: Convert to fraction form
    466,865.10/644,265.36 = 262,915.20/x
  3. Step 3: Cross multiply
    466,865.10x = 644,265.36 × 262,915.20
  4. Step 4: Simplify right side
    466,865.10x = 169,387,155,977.47
  5. Step 5: Solve for x
    x = 169,387,155,977.47/466,865.10
  6. Step 6: Final answer
    x = 362,818.20

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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.