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Finding the Fourth Proportional to 491,856.60, 737,784.90 and 488,746.20

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Solution

The fourth proportional to 491,856.60, 737,784.90 and 488,746.20 is: 733,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,856.60 : 737,784.90 = 488,746.20 : x
  2. Step 2: Convert to fraction form
    491,856.60/737,784.90 = 488,746.20/x
  3. Step 3: Cross multiply
    491,856.60x = 737,784.90 × 488,746.20
  4. Step 4: Simplify right side
    491,856.60x = 360,589,566,292.38
  5. Step 5: Solve for x
    x = 360,589,566,292.38/491,856.60
  6. Step 6: Final answer
    x = 733,119.30

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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.