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Finding the Fourth Proportional to 519,752.46, 779,679.76 and 216,083.90

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Solution

The fourth proportional to 519,752.46, 779,679.76 and 216,083.90 is: 324,147.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,752.46 : 779,679.76 = 216,083.90 : x
  2. Step 2: Convert to fraction form
    519,752.46/779,679.76 = 216,083.90/x
  3. Step 3: Cross multiply
    519,752.46x = 779,679.76 × 216,083.90
  4. Step 4: Simplify right side
    519,752.46x = 168,476,243,291.86
  5. Step 5: Solve for x
    x = 168,476,243,291.86/519,752.46
  6. Step 6: Final answer
    x = 324,147.08

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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.