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Finding the Fourth Proportional to 554,702.40, 831,385.20 and 254,769.12

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Solution

The fourth proportional to 554,702.40, 831,385.20 and 254,769.12 is: 381,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,702.40 : 831,385.20 = 254,769.12 : x
  2. Step 2: Convert to fraction form
    554,702.40/831,385.20 = 254,769.12/x
  3. Step 3: Cross multiply
    554,702.40x = 831,385.20 × 254,769.12
  4. Step 4: Simplify right side
    554,702.40x = 211,811,275,785.02
  5. Step 5: Solve for x
    x = 211,811,275,785.02/554,702.40
  6. Step 6: Final answer
    x = 381,846.69

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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.