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Finding the Fourth Proportional to 474,728.52, 655,126.18 and 259,868.72

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Solution

The fourth proportional to 474,728.52, 655,126.18 and 259,868.72 is: 358,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,728.52 : 655,126.18 = 259,868.72 : x
  2. Step 2: Convert to fraction form
    474,728.52/655,126.18 = 259,868.72/x
  3. Step 3: Cross multiply
    474,728.52x = 655,126.18 × 259,868.72
  4. Step 4: Simplify right side
    474,728.52x = 170,246,801,835.09
  5. Step 5: Solve for x
    x = 170,246,801,835.09/474,728.52
  6. Step 6: Final answer
    x = 358,619.28

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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.