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Finding the Fourth Proportional to 578,657.36, 868,118.52 and 223,674.32

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Solution

The fourth proportional to 578,657.36, 868,118.52 and 223,674.32 is: 335,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,657.36 : 868,118.52 = 223,674.32 : x
  2. Step 2: Convert to fraction form
    578,657.36/868,118.52 = 223,674.32/x
  3. Step 3: Cross multiply
    578,657.36x = 868,118.52 × 223,674.32
  4. Step 4: Simplify right side
    578,657.36x = 194,175,819,640.41
  5. Step 5: Solve for x
    x = 194,175,819,640.41/578,657.36
  6. Step 6: Final answer
    x = 335,562.69

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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.