Home / 699,439.40-1,049,159.10-193,999.40

Finding the Fourth Proportional to 699,439.40, 1,049,159.10 and 193,999.40

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Solution

The fourth proportional to 699,439.40, 1,049,159.10 and 193,999.40 is: 290,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,439.40 : 1,049,159.10 = 193,999.40 : x
  2. Step 2: Convert to fraction form
    699,439.40/1,049,159.10 = 193,999.40/x
  3. Step 3: Cross multiply
    699,439.40x = 1,049,159.10 × 193,999.40
  4. Step 4: Simplify right side
    699,439.40x = 203,536,235,904.54
  5. Step 5: Solve for x
    x = 203,536,235,904.54/699,439.40
  6. Step 6: Final answer
    x = 290,999.10

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Double scale
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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.