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Finding the Fourth Proportional to 713,150.60, 984,103.22 and 390,837.83

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Solution

The fourth proportional to 713,150.60, 984,103.22 and 390,837.83 is: 539,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,150.60 : 984,103.22 = 390,837.83 : x
  2. Step 2: Convert to fraction form
    713,150.60/984,103.22 = 390,837.83/x
  3. Step 3: Cross multiply
    713,150.60x = 984,103.22 × 390,837.83
  4. Step 4: Simplify right side
    713,150.60x = 384,624,760,126.11
  5. Step 5: Solve for x
    x = 384,624,760,126.11/713,150.60
  6. Step 6: Final answer
    x = 539,331.75

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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.