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Finding the Fourth Proportional to 574,702.40, 792,871.20 and 348,265.28

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Solution

The fourth proportional to 574,702.40, 792,871.20 and 348,265.28 is: 480,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,702.40 : 792,871.20 = 348,265.28 : x
  2. Step 2: Convert to fraction form
    574,702.40/792,871.20 = 348,265.28/x
  3. Step 3: Cross multiply
    574,702.40x = 792,871.20 × 348,265.28
  4. Step 4: Simplify right side
    574,702.40x = 276,129,510,471.94
  5. Step 5: Solve for x
    x = 276,129,510,471.94/574,702.40
  6. Step 6: Final answer
    x = 480,473.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.