Home / 588,456.30-809,521.29-515,530.74

Finding the Fourth Proportional to 588,456.30, 809,521.29 and 515,530.74

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Solution

The fourth proportional to 588,456.30, 809,521.29 and 515,530.74 is: 709,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,456.30 : 809,521.29 = 515,530.74 : x
  2. Step 2: Convert to fraction form
    588,456.30/809,521.29 = 515,530.74/x
  3. Step 3: Cross multiply
    588,456.30x = 809,521.29 × 515,530.74
  4. Step 4: Simplify right side
    588,456.30x = 417,333,109,679.46
  5. Step 5: Solve for x
    x = 417,333,109,679.46/588,456.30
  6. Step 6: Final answer
    x = 709,199.83

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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.