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Finding the Fourth Proportional to 712,700.85, 982,739.04 and 454,168.25

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Solution

The fourth proportional to 712,700.85, 982,739.04 and 454,168.25 is: 626,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,700.85 : 982,739.04 = 454,168.25 : x
  2. Step 2: Convert to fraction form
    712,700.85/982,739.04 = 454,168.25/x
  3. Step 3: Cross multiply
    712,700.85x = 982,739.04 × 454,168.25
  4. Step 4: Simplify right side
    712,700.85x = 446,328,870,003.48
  5. Step 5: Solve for x
    x = 446,328,870,003.48/712,700.85
  6. Step 6: Final answer
    x = 626,249.95

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Double scale
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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.