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Finding the Fourth Proportional to 627,865.34, 866,430.26 and 341,385.66

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Solution

The fourth proportional to 627,865.34, 866,430.26 and 341,385.66 is: 471,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,865.34 : 866,430.26 = 341,385.66 : x
  2. Step 2: Convert to fraction form
    627,865.34/866,430.26 = 341,385.66/x
  3. Step 3: Cross multiply
    627,865.34x = 866,430.26 × 341,385.66
  4. Step 4: Simplify right side
    627,865.34x = 295,786,866,154.07
  5. Step 5: Solve for x
    x = 295,786,866,154.07/627,865.34
  6. Step 6: Final answer
    x = 471,099.21

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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.