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Finding the Fourth Proportional to 935,703.70, 1,401,481.95 and 724,657.30

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Solution

The fourth proportional to 935,703.70, 1,401,481.95 and 724,657.30 is: 1,085,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,703.70 : 1,401,481.95 = 724,657.30 : x
  2. Step 2: Convert to fraction form
    935,703.70/1,401,481.95 = 724,657.30/x
  3. Step 3: Cross multiply
    935,703.70x = 1,401,481.95 × 724,657.30
  4. Step 4: Simplify right side
    935,703.70x = 1,015,594,125,885.74
  5. Step 5: Solve for x
    x = 1,015,594,125,885.74/935,703.70
  6. Step 6: Final answer
    x = 1,085,380.05

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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.