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Finding the Fourth Proportional to 715,451.60, 986,912.11 and 446,713.04

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Solution

The fourth proportional to 715,451.60, 986,912.11 and 446,713.04 is: 616,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,451.60 : 986,912.11 = 446,713.04 : x
  2. Step 2: Convert to fraction form
    715,451.60/986,912.11 = 446,713.04/x
  3. Step 3: Cross multiply
    715,451.60x = 986,912.11 × 446,713.04
  4. Step 4: Simplify right side
    715,451.60x = 440,866,508,870.91
  5. Step 5: Solve for x
    x = 440,866,508,870.91/715,451.60
  6. Step 6: Final answer
    x = 616,207.31

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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.