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Finding the Fourth Proportional to 712,793.32, 983,687.16 and 406,952.44

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Solution

The fourth proportional to 712,793.32, 983,687.16 and 406,952.44 is: 561,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,793.32 : 983,687.16 = 406,952.44 : x
  2. Step 2: Convert to fraction form
    712,793.32/983,687.16 = 406,952.44/x
  3. Step 3: Cross multiply
    712,793.32x = 983,687.16 × 406,952.44
  4. Step 4: Simplify right side
    712,793.32x = 400,313,889,958.67
  5. Step 5: Solve for x
    x = 400,313,889,958.67/712,793.32
  6. Step 6: Final answer
    x = 561,612.85

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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.