Home / 527,131.17-727,437.69-285,413.00

Finding the Fourth Proportional to 527,131.17, 727,437.69 and 285,413.00

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Solution

The fourth proportional to 527,131.17, 727,437.69 and 285,413.00 is: 393,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,131.17 : 727,437.69 = 285,413.00 : x
  2. Step 2: Convert to fraction form
    527,131.17/727,437.69 = 285,413.00/x
  3. Step 3: Cross multiply
    527,131.17x = 727,437.69 × 285,413.00
  4. Step 4: Simplify right side
    527,131.17x = 207,620,169,778.78
  5. Step 5: Solve for x
    x = 207,620,169,778.78/527,131.17
  6. Step 6: Final answer
    x = 393,868.13

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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.