Home / 788,758.80-1,183,138.20-577,251.60

Finding the Fourth Proportional to 788,758.80, 1,183,138.20 and 577,251.60

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Solution

The fourth proportional to 788,758.80, 1,183,138.20 and 577,251.60 is: 865,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,758.80 : 1,183,138.20 = 577,251.60 : x
  2. Step 2: Convert to fraction form
    788,758.80/1,183,138.20 = 577,251.60/x
  3. Step 3: Cross multiply
    788,758.80x = 1,183,138.20 × 577,251.60
  4. Step 4: Simplify right side
    788,758.80x = 682,968,418,971.12
  5. Step 5: Solve for x
    x = 682,968,418,971.12/788,758.80
  6. Step 6: Final answer
    x = 865,877.40

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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.