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Finding the Fourth Proportional to 519,325.80, 779,061.60 and 164,302.80

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Solution

The fourth proportional to 519,325.80, 779,061.60 and 164,302.80 is: 246,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,325.80 : 779,061.60 = 164,302.80 : x
  2. Step 2: Convert to fraction form
    519,325.80/779,061.60 = 164,302.80/x
  3. Step 3: Cross multiply
    519,325.80x = 779,061.60 × 164,302.80
  4. Step 4: Simplify right side
    519,325.80x = 128,002,002,252.48
  5. Step 5: Solve for x
    x = 128,002,002,252.48/519,325.80
  6. Step 6: Final answer
    x = 246,477.26

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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.