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Finding the Fourth Proportional to 528,091.65, 792,137.48 and 243,781.65

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Solution

The fourth proportional to 528,091.65, 792,137.48 and 243,781.65 is: 365,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,091.65 : 792,137.48 = 243,781.65 : x
  2. Step 2: Convert to fraction form
    528,091.65/792,137.48 = 243,781.65/x
  3. Step 3: Cross multiply
    528,091.65x = 792,137.48 × 243,781.65
  4. Step 4: Simplify right side
    528,091.65x = 193,108,581,901.24
  5. Step 5: Solve for x
    x = 193,108,581,901.24/528,091.65
  6. Step 6: Final answer
    x = 365,672.48

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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.