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Finding the Fourth Proportional to 519,386.77, 711,556.52 and 499,964.38

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Solution

The fourth proportional to 519,386.77, 711,556.52 and 499,964.38 is: 684,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,386.77 : 711,556.52 = 499,964.38 : x
  2. Step 2: Convert to fraction form
    519,386.77/711,556.52 = 499,964.38/x
  3. Step 3: Cross multiply
    519,386.77x = 711,556.52 × 499,964.38
  4. Step 4: Simplify right side
    519,386.77x = 355,752,914,356.76
  5. Step 5: Solve for x
    x = 355,752,914,356.76/519,386.77
  6. Step 6: Final answer
    x = 684,947.97

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Double scale
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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.