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Finding the Fourth Proportional to 713,134.17, 984,132.86 and 390,837.33

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Solution

The fourth proportional to 713,134.17, 984,132.86 and 390,837.33 is: 539,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,134.17 : 984,132.86 = 390,837.33 : x
  2. Step 2: Convert to fraction form
    713,134.17/984,132.86 = 390,837.33/x
  3. Step 3: Cross multiply
    713,134.17x = 984,132.86 × 390,837.33
  4. Step 4: Simplify right side
    713,134.17x = 384,635,857,413.48
  5. Step 5: Solve for x
    x = 384,635,857,413.48/713,134.17
  6. Step 6: Final answer
    x = 539,359.74

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1.5x scale

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.