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Finding the Fourth Proportional to 502,708.41, 693,720.05 and 276,352.29

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Solution

The fourth proportional to 502,708.41, 693,720.05 and 276,352.29 is: 381,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,708.41 : 693,720.05 = 276,352.29 : x
  2. Step 2: Convert to fraction form
    502,708.41/693,720.05 = 276,352.29/x
  3. Step 3: Cross multiply
    502,708.41x = 693,720.05 × 276,352.29
  4. Step 4: Simplify right side
    502,708.41x = 191,711,123,054.65
  5. Step 5: Solve for x
    x = 191,711,123,054.65/502,708.41
  6. Step 6: Final answer
    x = 381,356.51

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1.5x scale

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.