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Finding the Fourth Proportional to 442,878.53, 611,191.82 and 249,298.73

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Solution

The fourth proportional to 442,878.53, 611,191.82 and 249,298.73 is: 344,043.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,878.53 : 611,191.82 = 249,298.73 : x
  2. Step 2: Convert to fraction form
    442,878.53/611,191.82 = 249,298.73/x
  3. Step 3: Cross multiply
    442,878.53x = 611,191.82 × 249,298.73
  4. Step 4: Simplify right side
    442,878.53x = 152,369,340,209.94
  5. Step 5: Solve for x
    x = 152,369,340,209.94/442,878.53
  6. Step 6: Final answer
    x = 344,043.19

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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.