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Finding the Fourth Proportional to 474,687.12, 655,042.84 and 259,785.60

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Solution

The fourth proportional to 474,687.12, 655,042.84 and 259,785.60 is: 358,490.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,687.12 : 655,042.84 = 259,785.60 : x
  2. Step 2: Convert to fraction form
    474,687.12/655,042.84 = 259,785.60/x
  3. Step 3: Cross multiply
    474,687.12x = 655,042.84 × 259,785.60
  4. Step 4: Simplify right side
    474,687.12x = 170,170,697,215.10
  5. Step 5: Solve for x
    x = 170,170,697,215.10/474,687.12
  6. Step 6: Final answer
    x = 358,490.24

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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.