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Finding the Fourth Proportional to 474,691.65, 655,075.18 and 259,845.31

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Solution

The fourth proportional to 474,691.65, 655,075.18 and 259,845.31 is: 358,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,691.65 : 655,075.18 = 259,845.31 : x
  2. Step 2: Convert to fraction form
    474,691.65/655,075.18 = 259,845.31/x
  3. Step 3: Cross multiply
    474,691.65x = 655,075.18 × 259,845.31
  4. Step 4: Simplify right side
    474,691.65x = 170,218,213,220.41
  5. Step 5: Solve for x
    x = 170,218,213,220.41/474,691.65
  6. Step 6: Final answer
    x = 358,586.91

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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.