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Finding the Fourth Proportional to 608,331.15, 912,763.44 and 288,713.85

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Solution

The fourth proportional to 608,331.15, 912,763.44 and 288,713.85 is: 433,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,331.15 : 912,763.44 = 288,713.85 : x
  2. Step 2: Convert to fraction form
    608,331.15/912,763.44 = 288,713.85/x
  3. Step 3: Cross multiply
    608,331.15x = 912,763.44 × 288,713.85
  4. Step 4: Simplify right side
    608,331.15x = 263,527,446,901.64
  5. Step 5: Solve for x
    x = 263,527,446,901.64/608,331.15
  6. Step 6: Final answer
    x = 433,197.36

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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.