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Finding the Fourth Proportional to 450,702.80, 621,977.20 and 246,750.28

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Solution

The fourth proportional to 450,702.80, 621,977.20 and 246,750.28 is: 340,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,702.80 : 621,977.20 = 246,750.28 : x
  2. Step 2: Convert to fraction form
    450,702.80/621,977.20 = 246,750.28/x
  3. Step 3: Cross multiply
    450,702.80x = 621,977.20 × 246,750.28
  4. Step 4: Simplify right side
    450,702.80x = 153,473,048,253.62
  5. Step 5: Solve for x
    x = 153,473,048,253.62/450,702.80
  6. Step 6: Final answer
    x = 340,519.40

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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.