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Finding the Fourth Proportional to 453,378.30, 625,661.11 and 249,428.73

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Solution

The fourth proportional to 453,378.30, 625,661.11 and 249,428.73 is: 344,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,378.30 : 625,661.11 = 249,428.73 : x
  2. Step 2: Convert to fraction form
    453,378.30/625,661.11 = 249,428.73/x
  3. Step 3: Cross multiply
    453,378.30x = 625,661.11 × 249,428.73
  4. Step 4: Simplify right side
    453,378.30x = 156,057,856,077.69
  5. Step 5: Solve for x
    x = 156,057,856,077.69/453,378.30
  6. Step 6: Final answer
    x = 344,211.13

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1.5x scale

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.