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Finding the Fourth Proportional to 713,016.48, 983,937.60 and 426,367.20

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Solution

The fourth proportional to 713,016.48, 983,937.60 and 426,367.20 is: 588,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,016.48 : 983,937.60 = 426,367.20 : x
  2. Step 2: Convert to fraction form
    713,016.48/983,937.60 = 426,367.20/x
  3. Step 3: Cross multiply
    713,016.48x = 983,937.60 × 426,367.20
  4. Step 4: Simplify right side
    713,016.48x = 419,518,719,486.72
  5. Step 5: Solve for x
    x = 419,518,719,486.72/713,016.48
  6. Step 6: Final answer
    x = 588,371.70

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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.