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Finding the Fourth Proportional to 453,123.81, 625,320.98 and 249,161.76

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Solution

The fourth proportional to 453,123.81, 625,320.98 and 249,161.76 is: 343,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,123.81 : 625,320.98 = 249,161.76 : x
  2. Step 2: Convert to fraction form
    453,123.81/625,320.98 = 249,161.76/x
  3. Step 3: Cross multiply
    453,123.81x = 625,320.98 × 249,161.76
  4. Step 4: Simplify right side
    453,123.81x = 155,806,074,695.92
  5. Step 5: Solve for x
    x = 155,806,074,695.92/453,123.81
  6. Step 6: Final answer
    x = 343,848.79

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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.