Home / 515,838.20-773,757.30-453,630.20

Finding the Fourth Proportional to 515,838.20, 773,757.30 and 453,630.20

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Solution

The fourth proportional to 515,838.20, 773,757.30 and 453,630.20 is: 680,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,838.20 : 773,757.30 = 453,630.20 : x
  2. Step 2: Convert to fraction form
    515,838.20/773,757.30 = 453,630.20/x
  3. Step 3: Cross multiply
    515,838.20x = 773,757.30 × 453,630.20
  4. Step 4: Simplify right side
    515,838.20x = 350,999,678,750.46
  5. Step 5: Solve for x
    x = 350,999,678,750.46/515,838.20
  6. Step 6: Final answer
    x = 680,445.30

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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.