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Finding the Fourth Proportional to 866,715.42, 1,196,100 and 474,274.78

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Solution

The fourth proportional to 866,715.42, 1,196,100 and 474,274.78 is: 654,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,715.42 : 1,196,100 = 474,274.78 : x
  2. Step 2: Convert to fraction form
    866,715.42/1,196,100 = 474,274.78/x
  3. Step 3: Cross multiply
    866,715.42x = 1,196,100 × 474,274.78
  4. Step 4: Simplify right side
    866,715.42x = 567,280,061,367.75
  5. Step 5: Solve for x
    x = 567,280,061,367.75/866,715.42
  6. Step 6: Final answer
    x = 654,517.10

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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.