Home / 769,433.90-1,154,174.27-263,987.79

Finding the Fourth Proportional to 769,433.90, 1,154,174.27 and 263,987.79

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Solution

The fourth proportional to 769,433.90, 1,154,174.27 and 263,987.79 is: 395,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,433.90 : 1,154,174.27 = 263,987.79 : x
  2. Step 2: Convert to fraction form
    769,433.90/1,154,174.27 = 263,987.79/x
  3. Step 3: Cross multiply
    769,433.90x = 1,154,174.27 × 263,987.79
  4. Step 4: Simplify right side
    769,433.90x = 304,687,913,492.22
  5. Step 5: Solve for x
    x = 304,687,913,492.22/769,433.90
  6. Step 6: Final answer
    x = 395,989.72

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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.