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Finding the Fourth Proportional to 591,086.40, 886,629.60 and 404,462.40

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Solution

The fourth proportional to 591,086.40, 886,629.60 and 404,462.40 is: 606,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,086.40 : 886,629.60 = 404,462.40 : x
  2. Step 2: Convert to fraction form
    591,086.40/886,629.60 = 404,462.40/x
  3. Step 3: Cross multiply
    591,086.40x = 886,629.60 × 404,462.40
  4. Step 4: Simplify right side
    591,086.40x = 358,608,335,927.04
  5. Step 5: Solve for x
    x = 358,608,335,927.04/591,086.40
  6. Step 6: Final answer
    x = 606,693.60

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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.