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Finding the Fourth Proportional to 516,057.90, 774,305.01 and 250,016.10

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Solution

The fourth proportional to 516,057.90, 774,305.01 and 250,016.10 is: 375,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,057.90 : 774,305.01 = 250,016.10 : x
  2. Step 2: Convert to fraction form
    516,057.90/774,305.01 = 250,016.10/x
  3. Step 3: Cross multiply
    516,057.90x = 774,305.01 × 250,016.10
  4. Step 4: Simplify right side
    516,057.90x = 193,588,718,810.66
  5. Step 5: Solve for x
    x = 193,588,718,810.66/516,057.90
  6. Step 6: Final answer
    x = 375,129.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.