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Finding the Fourth Proportional to 474,717.56, 655,111.08 and 259,870.78

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Solution

The fourth proportional to 474,717.56, 655,111.08 and 259,870.78 is: 358,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,717.56 : 655,111.08 = 259,870.78 : x
  2. Step 2: Convert to fraction form
    474,717.56/655,111.08 = 259,870.78/x
  3. Step 3: Cross multiply
    474,717.56x = 655,111.08 × 259,870.78
  4. Step 4: Simplify right side
    474,717.56x = 170,244,222,771.33
  5. Step 5: Solve for x
    x = 170,244,222,771.33/474,717.56
  6. Step 6: Final answer
    x = 358,622.13

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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.