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Finding the Fourth Proportional to 625,168.80, 936,370.80 and 483,818.40

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Solution

The fourth proportional to 625,168.80, 936,370.80 and 483,818.40 is: 724,657.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,168.80 : 936,370.80 = 483,818.40 : x
  2. Step 2: Convert to fraction form
    625,168.80/936,370.80 = 483,818.40/x
  3. Step 3: Cross multiply
    625,168.80x = 936,370.80 × 483,818.40
  4. Step 4: Simplify right side
    625,168.80x = 453,033,422,262.72
  5. Step 5: Solve for x
    x = 453,033,422,262.72/625,168.80
  6. Step 6: Final answer
    x = 724,657.76

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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.