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Finding the Fourth Proportional to 519,391.27, 779,361.14 and 368,562.88

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Solution

The fourth proportional to 519,391.27, 779,361.14 and 368,562.88 is: 553,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,391.27 : 779,361.14 = 368,562.88 : x
  2. Step 2: Convert to fraction form
    519,391.27/779,361.14 = 368,562.88/x
  3. Step 3: Cross multiply
    519,391.27x = 779,361.14 × 368,562.88
  4. Step 4: Simplify right side
    519,391.27x = 287,243,584,475.67
  5. Step 5: Solve for x
    x = 287,243,584,475.67/519,391.27
  6. Step 6: Final answer
    x = 553,038.92

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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.