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Finding the Fourth Proportional to 866,241.32, 1,195,406.03 and 479,073.05

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Solution

The fourth proportional to 866,241.32, 1,195,406.03 and 479,073.05 is: 661,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,241.32 : 1,195,406.03 = 479,073.05 : x
  2. Step 2: Convert to fraction form
    866,241.32/1,195,406.03 = 479,073.05/x
  3. Step 3: Cross multiply
    866,241.32x = 1,195,406.03 × 479,073.05
  4. Step 4: Simplify right side
    866,241.32x = 572,686,819,208.08
  5. Step 5: Solve for x
    x = 572,686,819,208.08/866,241.32
  6. Step 6: Final answer
    x = 661,116.95

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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.