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Finding the Fourth Proportional to 632,590.40, 948,885.60 and 211,822.40

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Solution

The fourth proportional to 632,590.40, 948,885.60 and 211,822.40 is: 317,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,590.40 : 948,885.60 = 211,822.40 : x
  2. Step 2: Convert to fraction form
    632,590.40/948,885.60 = 211,822.40/x
  3. Step 3: Cross multiply
    632,590.40x = 948,885.60 × 211,822.40
  4. Step 4: Simplify right side
    632,590.40x = 200,995,225,117.44
  5. Step 5: Solve for x
    x = 200,995,225,117.44/632,590.40
  6. Step 6: Final answer
    x = 317,733.60

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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.