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Finding the Fourth Proportional to 798,575.80, 1,197,863.70 and 325,600.60

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Solution

The fourth proportional to 798,575.80, 1,197,863.70 and 325,600.60 is: 488,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,575.80 : 1,197,863.70 = 325,600.60 : x
  2. Step 2: Convert to fraction form
    798,575.80/1,197,863.70 = 325,600.60/x
  3. Step 3: Cross multiply
    798,575.80x = 1,197,863.70 × 325,600.60
  4. Step 4: Simplify right side
    798,575.80x = 390,025,139,438.22
  5. Step 5: Solve for x
    x = 390,025,139,438.22/798,575.80
  6. Step 6: Final answer
    x = 488,400.90

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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.