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Finding the Fourth Proportional to 627,856.24, 866,437.20 and 341,376.40

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Solution

The fourth proportional to 627,856.24, 866,437.20 and 341,376.40 is: 471,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,856.24 : 866,437.20 = 341,376.40 : x
  2. Step 2: Convert to fraction form
    627,856.24/866,437.20 = 341,376.40/x
  3. Step 3: Cross multiply
    627,856.24x = 866,437.20 × 341,376.40
  4. Step 4: Simplify right side
    627,856.24x = 295,781,212,162.08
  5. Step 5: Solve for x
    x = 295,781,212,162.08/627,856.24
  6. Step 6: Final answer
    x = 471,097.03

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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.