Home / 687,850.70-1,031,776.05-519,889.10

Finding the Fourth Proportional to 687,850.70, 1,031,776.05 and 519,889.10

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Solution

The fourth proportional to 687,850.70, 1,031,776.05 and 519,889.10 is: 779,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,850.70 : 1,031,776.05 = 519,889.10 : x
  2. Step 2: Convert to fraction form
    687,850.70/1,031,776.05 = 519,889.10/x
  3. Step 3: Cross multiply
    687,850.70x = 1,031,776.05 × 519,889.10
  4. Step 4: Simplify right side
    687,850.70x = 536,409,122,036.06
  5. Step 5: Solve for x
    x = 536,409,122,036.06/687,850.70
  6. Step 6: Final answer
    x = 779,833.65

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Similar ratio
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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.