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Finding the Fourth Proportional to 474,810.72, 655,246.56 and 259,947.12

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Solution

The fourth proportional to 474,810.72, 655,246.56 and 259,947.12 is: 358,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,810.72 : 655,246.56 = 259,947.12 : x
  2. Step 2: Convert to fraction form
    474,810.72/655,246.56 = 259,947.12/x
  3. Step 3: Cross multiply
    474,810.72x = 655,246.56 × 259,947.12
  4. Step 4: Simplify right side
    474,810.72x = 170,329,456,161.91
  5. Step 5: Solve for x
    x = 170,329,456,161.91/474,810.72
  6. Step 6: Final answer
    x = 358,731.28

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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.