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Finding the Fourth Proportional to 627,828.39, 866,411.71 and 341,347.79

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Solution

The fourth proportional to 627,828.39, 866,411.71 and 341,347.79 is: 471,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,828.39 : 866,411.71 = 341,347.79 : x
  2. Step 2: Convert to fraction form
    627,828.39/866,411.71 = 341,347.79/x
  3. Step 3: Cross multiply
    627,828.39x = 866,411.71 × 341,347.79
  4. Step 4: Simplify right side
    627,828.39x = 295,747,723,751.28
  5. Step 5: Solve for x
    x = 295,747,723,751.28/627,828.39
  6. Step 6: Final answer
    x = 471,064.59

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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.