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Finding the Fourth Proportional to 627,801.68, 866,348.52 and 341,315.12

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Solution

The fourth proportional to 627,801.68, 866,348.52 and 341,315.12 is: 471,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,801.68 : 866,348.52 = 341,315.12 : x
  2. Step 2: Convert to fraction form
    627,801.68/866,348.52 = 341,315.12/x
  3. Step 3: Cross multiply
    627,801.68x = 866,348.52 × 341,315.12
  4. Step 4: Simplify right side
    627,801.68x = 295,697,849,065.62
  5. Step 5: Solve for x
    x = 295,697,849,065.62/627,801.68
  6. Step 6: Final answer
    x = 471,005.19

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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.