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Finding the Fourth Proportional to 519,712.06, 779,589.55 and 178,389.94

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Solution

The fourth proportional to 519,712.06, 779,589.55 and 178,389.94 is: 267,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,712.06 : 779,589.55 = 178,389.94 : x
  2. Step 2: Convert to fraction form
    519,712.06/779,589.55 = 178,389.94/x
  3. Step 3: Cross multiply
    519,712.06x = 779,589.55 × 178,389.94
  4. Step 4: Simplify right side
    519,712.06x = 139,070,931,933.64
  5. Step 5: Solve for x
    x = 139,070,931,933.64/519,712.06
  6. Step 6: Final answer
    x = 267,592.27

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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.