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Finding the Fourth Proportional to 474,854.16, 655,278.48 and 259,990.32

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Solution

The fourth proportional to 474,854.16, 655,278.48 and 259,990.32 is: 358,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,854.16 : 655,278.48 = 259,990.32 : x
  2. Step 2: Convert to fraction form
    474,854.16/655,278.48 = 259,990.32/x
  3. Step 3: Cross multiply
    474,854.16x = 655,278.48 × 259,990.32
  4. Step 4: Simplify right side
    474,854.16x = 170,366,061,704.31
  5. Step 5: Solve for x
    x = 170,366,061,704.31/474,854.16
  6. Step 6: Final answer
    x = 358,775.55

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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.