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Finding the Fourth Proportional to 924,793.65, 1,387,190.48 and 259,945.65

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Solution

The fourth proportional to 924,793.65, 1,387,190.48 and 259,945.65 is: 389,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,793.65 : 1,387,190.48 = 259,945.65 : x
  2. Step 2: Convert to fraction form
    924,793.65/1,387,190.48 = 259,945.65/x
  3. Step 3: Cross multiply
    924,793.65x = 1,387,190.48 × 259,945.65
  4. Step 4: Simplify right side
    924,793.65x = 360,594,129,697.68
  5. Step 5: Solve for x
    x = 360,594,129,697.68/924,793.65
  6. Step 6: Final answer
    x = 389,918.48

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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.