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Finding the Fourth Proportional to 453,628.80, 680,702.40 and 173,347.20

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Solution

The fourth proportional to 453,628.80, 680,702.40 and 173,347.20 is: 260,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,628.80 : 680,702.40 = 173,347.20 : x
  2. Step 2: Convert to fraction form
    453,628.80/680,702.40 = 173,347.20/x
  3. Step 3: Cross multiply
    453,628.80x = 680,702.40 × 173,347.20
  4. Step 4: Simplify right side
    453,628.80x = 117,997,855,073.28
  5. Step 5: Solve for x
    x = 117,997,855,073.28/453,628.80
  6. Step 6: Final answer
    x = 260,119.85

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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.