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Finding the Fourth Proportional to 507,275.39, 761,425.85 and 449,948.59

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Solution

The fourth proportional to 507,275.39, 761,425.85 and 449,948.59 is: 675,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,275.39 : 761,425.85 = 449,948.59 : x
  2. Step 2: Convert to fraction form
    507,275.39/761,425.85 = 449,948.59/x
  3. Step 3: Cross multiply
    507,275.39x = 761,425.85 × 449,948.59
  4. Step 4: Simplify right side
    507,275.39x = 342,602,486,818.36
  5. Step 5: Solve for x
    x = 342,602,486,818.36/507,275.39
  6. Step 6: Final answer
    x = 675,377.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.