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Finding the Fourth Proportional to 519,388.77, 711,559.26 and 499,966.38

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Solution

The fourth proportional to 519,388.77, 711,559.26 and 499,966.38 is: 684,950.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,388.77 : 711,559.26 = 499,966.38 : x
  2. Step 2: Convert to fraction form
    519,388.77/711,559.26 = 499,966.38/x
  3. Step 3: Cross multiply
    519,388.77x = 711,559.26 × 499,966.38
  4. Step 4: Simplify right side
    519,388.77x = 355,755,707,377.68
  5. Step 5: Solve for x
    x = 355,755,707,377.68/519,388.77
  6. Step 6: Final answer
    x = 684,950.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.