Home / 698,755.20-1,048,132.80-193,315.20

Finding the Fourth Proportional to 698,755.20, 1,048,132.80 and 193,315.20

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Solution

The fourth proportional to 698,755.20, 1,048,132.80 and 193,315.20 is: 289,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,755.20 : 1,048,132.80 = 193,315.20 : x
  2. Step 2: Convert to fraction form
    698,755.20/1,048,132.80 = 193,315.20/x
  3. Step 3: Cross multiply
    698,755.20x = 1,048,132.80 × 193,315.20
  4. Step 4: Simplify right side
    698,755.20x = 202,620,001,858.56
  5. Step 5: Solve for x
    x = 202,620,001,858.56/698,755.20
  6. Step 6: Final answer
    x = 289,972.80

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Similar ratio
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1.5x scale

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.