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Finding the Fourth Proportional to 805,613.60, 1,207,383.60 and 617,693.60

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Solution

The fourth proportional to 805,613.60, 1,207,383.60 and 617,693.60 is: 925,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,613.60 : 1,207,383.60 = 617,693.60 : x
  2. Step 2: Convert to fraction form
    805,613.60/1,207,383.60 = 617,693.60/x
  3. Step 3: Cross multiply
    805,613.60x = 1,207,383.60 × 617,693.60
  4. Step 4: Simplify right side
    805,613.60x = 745,793,122,464.96
  5. Step 5: Solve for x
    x = 745,793,122,464.96/805,613.60
  6. Step 6: Final answer
    x = 925,745.45

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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.