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Finding the Fourth Proportional to 463,310.90, 694,966.35 and 147,799.70

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Solution

The fourth proportional to 463,310.90, 694,966.35 and 147,799.70 is: 221,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,310.90 : 694,966.35 = 147,799.70 : x
  2. Step 2: Convert to fraction form
    463,310.90/694,966.35 = 147,799.70/x
  3. Step 3: Cross multiply
    463,310.90x = 694,966.35 × 147,799.70
  4. Step 4: Simplify right side
    463,310.90x = 102,715,818,040.10
  5. Step 5: Solve for x
    x = 102,715,818,040.10/463,310.90
  6. Step 6: Final answer
    x = 221,699.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.