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Finding the Fourth Proportional to 552,640.89, 828,961.18 and 153,281.71

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Solution

The fourth proportional to 552,640.89, 828,961.18 and 153,281.71 is: 229,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,640.89 : 828,961.18 = 153,281.71 : x
  2. Step 2: Convert to fraction form
    552,640.89/828,961.18 = 153,281.71/x
  3. Step 3: Cross multiply
    552,640.89x = 828,961.18 × 153,281.71
  4. Step 4: Simplify right side
    552,640.89x = 127,064,587,194.02
  5. Step 5: Solve for x
    x = 127,064,587,194.02/552,640.89
  6. Step 6: Final answer
    x = 229,922.52

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Half scale
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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.