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Finding the Fourth Proportional to 590,888.52, 815,415.07 and 361,428.95

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Solution

The fourth proportional to 590,888.52, 815,415.07 and 361,428.95 is: 498,765.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,888.52 : 815,415.07 = 361,428.95 : x
  2. Step 2: Convert to fraction form
    590,888.52/815,415.07 = 361,428.95/x
  3. Step 3: Cross multiply
    590,888.52x = 815,415.07 × 361,428.95
  4. Step 4: Simplify right side
    590,888.52x = 294,714,612,564.28
  5. Step 5: Solve for x
    x = 294,714,612,564.28/590,888.52
  6. Step 6: Final answer
    x = 498,765.17

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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.