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Finding the Fourth Proportional to 627,586.38, 866,074.48 and 341,106.39

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Solution

The fourth proportional to 627,586.38, 866,074.48 and 341,106.39 is: 470,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,586.38 : 866,074.48 = 341,106.39 : x
  2. Step 2: Convert to fraction form
    627,586.38/866,074.48 = 341,106.39/x
  3. Step 3: Cross multiply
    627,586.38x = 866,074.48 × 341,106.39
  4. Step 4: Simplify right side
    627,586.38x = 295,423,538,491.16
  5. Step 5: Solve for x
    x = 295,423,538,491.16/627,586.38
  6. Step 6: Final answer
    x = 470,729.68

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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.