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Finding the Fourth Proportional to 590,879.73, 815,402.95 and 361,420.17

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Solution

The fourth proportional to 590,879.73, 815,402.95 and 361,420.17 is: 498,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,879.73 : 815,402.95 = 361,420.17 : x
  2. Step 2: Convert to fraction form
    590,879.73/815,402.95 = 361,420.17/x
  3. Step 3: Cross multiply
    590,879.73x = 815,402.95 × 361,420.17
  4. Step 4: Simplify right side
    590,879.73x = 294,703,070,879.18
  5. Step 5: Solve for x
    x = 294,703,070,879.18/590,879.73
  6. Step 6: Final answer
    x = 498,753.05

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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.