Home / 769,439.20-1,154,224.40-200,895.76

Finding the Fourth Proportional to 769,439.20, 1,154,224.40 and 200,895.76

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Solution

The fourth proportional to 769,439.20, 1,154,224.40 and 200,895.76 is: 301,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,439.20 : 1,154,224.40 = 200,895.76 : x
  2. Step 2: Convert to fraction form
    769,439.20/1,154,224.40 = 200,895.76/x
  3. Step 3: Cross multiply
    769,439.20x = 1,154,224.40 × 200,895.76
  4. Step 4: Simplify right side
    769,439.20x = 231,878,788,048.54
  5. Step 5: Solve for x
    x = 231,878,788,048.54/769,439.20
  6. Step 6: Final answer
    x = 301,360.77

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Half scale
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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.