Home / 769,363.20-1,153,123.20-395,193.60

Finding the Fourth Proportional to 769,363.20, 1,153,123.20 and 395,193.60

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Solution

The fourth proportional to 769,363.20, 1,153,123.20 and 395,193.60 is: 592,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,363.20 : 1,153,123.20 = 395,193.60 : x
  2. Step 2: Convert to fraction form
    769,363.20/1,153,123.20 = 395,193.60/x
  3. Step 3: Cross multiply
    769,363.20x = 1,153,123.20 × 395,193.60
  4. Step 4: Simplify right side
    769,363.20x = 455,706,908,651.52
  5. Step 5: Solve for x
    x = 455,706,908,651.52/769,363.20
  6. Step 6: Final answer
    x = 592,317.01

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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.