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Finding the Fourth Proportional to 590,887.52, 815,413.70 and 361,427.95

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Solution

The fourth proportional to 590,887.52, 815,413.70 and 361,427.95 is: 498,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,887.52 : 815,413.70 = 361,427.95 : x
  2. Step 2: Convert to fraction form
    590,887.52/815,413.70 = 361,427.95/x
  3. Step 3: Cross multiply
    590,887.52x = 815,413.70 × 361,427.95
  4. Step 4: Simplify right side
    590,887.52x = 294,713,296,108.71
  5. Step 5: Solve for x
    x = 294,713,296,108.71/590,887.52
  6. Step 6: Final answer
    x = 498,763.79

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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.