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Finding the Fourth Proportional to 424,071.95, 585,304.40 and 251,956.79

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Solution

The fourth proportional to 424,071.95, 585,304.40 and 251,956.79 is: 347,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,071.95 : 585,304.40 = 251,956.79 : x
  2. Step 2: Convert to fraction form
    424,071.95/585,304.40 = 251,956.79/x
  3. Step 3: Cross multiply
    424,071.95x = 585,304.40 × 251,956.79
  4. Step 4: Simplify right side
    424,071.95x = 147,471,414,631.71
  5. Step 5: Solve for x
    x = 147,471,414,631.71/424,071.95
  6. Step 6: Final answer
    x = 347,750.93

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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.