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Finding the Fourth Proportional to 474,790.61, 655,207.88 and 259,934.28

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Solution

The fourth proportional to 474,790.61, 655,207.88 and 259,934.28 is: 358,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,790.61 : 655,207.88 = 259,934.28 : x
  2. Step 2: Convert to fraction form
    474,790.61/655,207.88 = 259,934.28/x
  3. Step 3: Cross multiply
    474,790.61x = 655,207.88 × 259,934.28
  4. Step 4: Simplify right side
    474,790.61x = 170,310,987,238.46
  5. Step 5: Solve for x
    x = 170,310,987,238.46/474,790.61
  6. Step 6: Final answer
    x = 358,707.58

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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.