Home / 744,048.20-1,116,072.30-520,099.40

Finding the Fourth Proportional to 744,048.20, 1,116,072.30 and 520,099.40

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Solution

The fourth proportional to 744,048.20, 1,116,072.30 and 520,099.40 is: 780,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,048.20 : 1,116,072.30 = 520,099.40 : x
  2. Step 2: Convert to fraction form
    744,048.20/1,116,072.30 = 520,099.40/x
  3. Step 3: Cross multiply
    744,048.20x = 1,116,072.30 × 520,099.40
  4. Step 4: Simplify right side
    744,048.20x = 580,468,533,586.62
  5. Step 5: Solve for x
    x = 580,468,533,586.62/744,048.20
  6. Step 6: Final answer
    x = 780,149.10

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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.