Home / 519,387.77-711,557.89-499,965.38

Finding the Fourth Proportional to 519,387.77, 711,557.89 and 499,965.38

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Solution

The fourth proportional to 519,387.77, 711,557.89 and 499,965.38 is: 684,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,387.77 : 711,557.89 = 499,965.38 : x
  2. Step 2: Convert to fraction form
    519,387.77/711,557.89 = 499,965.38/x
  3. Step 3: Cross multiply
    519,387.77x = 711,557.89 × 499,965.38
  4. Step 4: Simplify right side
    519,387.77x = 355,754,310,865.85
  5. Step 5: Solve for x
    x = 355,754,310,865.85/519,387.77
  6. Step 6: Final answer
    x = 684,949.34

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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.