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Finding the Fourth Proportional to 453,868.56, 626,333.28 and 249,915.20

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Solution

The fourth proportional to 453,868.56, 626,333.28 and 249,915.20 is: 344,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,868.56 : 626,333.28 = 249,915.20 : x
  2. Step 2: Convert to fraction form
    453,868.56/626,333.28 = 249,915.20/x
  3. Step 3: Cross multiply
    453,868.56x = 626,333.28 × 249,915.20
  4. Step 4: Simplify right side
    453,868.56x = 156,530,206,937.86
  5. Step 5: Solve for x
    x = 156,530,206,937.86/453,868.56
  6. Step 6: Final answer
    x = 344,880.04

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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.