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Finding the Fourth Proportional to 863,503.80, 1,295,255.70 and 705,910.20

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Solution

The fourth proportional to 863,503.80, 1,295,255.70 and 705,910.20 is: 1,058,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,503.80 : 1,295,255.70 = 705,910.20 : x
  2. Step 2: Convert to fraction form
    863,503.80/1,295,255.70 = 705,910.20/x
  3. Step 3: Cross multiply
    863,503.80x = 1,295,255.70 × 705,910.20
  4. Step 4: Simplify right side
    863,503.80x = 914,334,210,238.14
  5. Step 5: Solve for x
    x = 914,334,210,238.14/863,503.80
  6. Step 6: Final answer
    x = 1,058,865.30

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Similar ratio
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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.