Home / 724,811.10-1,087,216.65-192,414.30

Finding the Fourth Proportional to 724,811.10, 1,087,216.65 and 192,414.30

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Solution

The fourth proportional to 724,811.10, 1,087,216.65 and 192,414.30 is: 288,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,811.10 : 1,087,216.65 = 192,414.30 : x
  2. Step 2: Convert to fraction form
    724,811.10/1,087,216.65 = 192,414.30/x
  3. Step 3: Cross multiply
    724,811.10x = 1,087,216.65 × 192,414.30
  4. Step 4: Simplify right side
    724,811.10x = 209,196,030,658.10
  5. Step 5: Solve for x
    x = 209,196,030,658.10/724,811.10
  6. Step 6: Final answer
    x = 288,621.45

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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.