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Finding the Fourth Proportional to 627,729.20, 866,256.04 and 341,256.52

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Solution

The fourth proportional to 627,729.20, 866,256.04 and 341,256.52 is: 470,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,729.20 : 866,256.04 = 341,256.52 : x
  2. Step 2: Convert to fraction form
    627,729.20/866,256.04 = 341,256.52/x
  3. Step 3: Cross multiply
    627,729.20x = 866,256.04 × 341,256.52
  4. Step 4: Simplify right side
    627,729.20x = 295,615,521,639.38
  5. Step 5: Solve for x
    x = 295,615,521,639.38/627,729.20
  6. Step 6: Final answer
    x = 470,928.42

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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.