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Finding the Fourth Proportional to 503,886.30, 755,829.45 and 188,302.20

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Solution

The fourth proportional to 503,886.30, 755,829.45 and 188,302.20 is: 282,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,886.30 : 755,829.45 = 188,302.20 : x
  2. Step 2: Convert to fraction form
    503,886.30/755,829.45 = 188,302.20/x
  3. Step 3: Cross multiply
    503,886.30x = 755,829.45 × 188,302.20
  4. Step 4: Simplify right side
    503,886.30x = 142,324,348,259.79
  5. Step 5: Solve for x
    x = 142,324,348,259.79/503,886.30
  6. Step 6: Final answer
    x = 282,453.30

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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.