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Finding the Fourth Proportional to 502,672.91, 693,671.04 and 276,316.79

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Solution

The fourth proportional to 502,672.91, 693,671.04 and 276,316.79 is: 381,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,672.91 : 693,671.04 = 276,316.79 : x
  2. Step 2: Convert to fraction form
    502,672.91/693,671.04 = 276,316.79/x
  3. Step 3: Cross multiply
    502,672.91x = 693,671.04 × 276,316.79
  4. Step 4: Simplify right side
    502,672.91x = 191,672,955,088.76
  5. Step 5: Solve for x
    x = 191,672,955,088.76/502,672.91
  6. Step 6: Final answer
    x = 381,307.51

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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.