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Finding the Fourth Proportional to 502,561.68, 693,505.80 and 276,207.36

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Solution

The fourth proportional to 502,561.68, 693,505.80 and 276,207.36 is: 381,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,561.68 : 693,505.80 = 276,207.36 : x
  2. Step 2: Convert to fraction form
    502,561.68/693,505.80 = 276,207.36/x
  3. Step 3: Cross multiply
    502,561.68x = 693,505.80 × 276,207.36
  4. Step 4: Simplify right side
    502,561.68x = 191,551,406,162.69
  5. Step 5: Solve for x
    x = 191,551,406,162.69/502,561.68
  6. Step 6: Final answer
    x = 381,150.04

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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.