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Finding the Fourth Proportional to 665,250.30, 997,875.45 and 191,951.10

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Solution

The fourth proportional to 665,250.30, 997,875.45 and 191,951.10 is: 287,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,250.30 : 997,875.45 = 191,951.10 : x
  2. Step 2: Convert to fraction form
    665,250.30/997,875.45 = 191,951.10/x
  3. Step 3: Cross multiply
    665,250.30x = 997,875.45 × 191,951.10
  4. Step 4: Simplify right side
    665,250.30x = 191,543,290,290.50
  5. Step 5: Solve for x
    x = 191,543,290,290.50/665,250.30
  6. Step 6: Final answer
    x = 287,926.65

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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.