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Finding the Fourth Proportional to 424,948.88, 586,956.06 and 308,476.45

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Solution

The fourth proportional to 424,948.88, 586,956.06 and 308,476.45 is: 426,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,948.88 : 586,956.06 = 308,476.45 : x
  2. Step 2: Convert to fraction form
    424,948.88/586,956.06 = 308,476.45/x
  3. Step 3: Cross multiply
    424,948.88x = 586,956.06 × 308,476.45
  4. Step 4: Simplify right side
    424,948.88x = 181,062,121,271.70
  5. Step 5: Solve for x
    x = 181,062,121,271.70/424,948.88
  6. Step 6: Final answer
    x = 426,079.78

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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.