Home / 519,291.18-778,346.28-219,584.70

Finding the Fourth Proportional to 519,291.18, 778,346.28 and 219,584.70

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Solution

The fourth proportional to 519,291.18, 778,346.28 and 219,584.70 is: 329,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,291.18 : 778,346.28 = 219,584.70 : x
  2. Step 2: Convert to fraction form
    519,291.18/778,346.28 = 219,584.70/x
  3. Step 3: Cross multiply
    519,291.18x = 778,346.28 × 219,584.70
  4. Step 4: Simplify right side
    519,291.18x = 170,912,934,389.92
  5. Step 5: Solve for x
    x = 170,912,934,389.92/519,291.18
  6. Step 6: Final answer
    x = 329,127.36

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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.