Home / 787,557.60-1,181,336.40-451,634.40

Finding the Fourth Proportional to 787,557.60, 1,181,336.40 and 451,634.40

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Solution

The fourth proportional to 787,557.60, 1,181,336.40 and 451,634.40 is: 677,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,557.60 : 1,181,336.40 = 451,634.40 : x
  2. Step 2: Convert to fraction form
    787,557.60/1,181,336.40 = 451,634.40/x
  3. Step 3: Cross multiply
    787,557.60x = 1,181,336.40 × 451,634.40
  4. Step 4: Simplify right side
    787,557.60x = 533,532,156,212.16
  5. Step 5: Solve for x
    x = 533,532,156,212.16/787,557.60
  6. Step 6: Final answer
    x = 677,451.60

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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.