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Finding the Fourth Proportional to 543,514.74, 814,550.40 and 243,939.48

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Solution

The fourth proportional to 543,514.74, 814,550.40 and 243,939.48 is: 365,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,514.74 : 814,550.40 = 243,939.48 : x
  2. Step 2: Convert to fraction form
    543,514.74/814,550.40 = 243,939.48/x
  3. Step 3: Cross multiply
    543,514.74x = 814,550.40 × 243,939.48
  4. Step 4: Simplify right side
    543,514.74x = 198,701,001,009.79
  5. Step 5: Solve for x
    x = 198,701,001,009.79/543,514.74
  6. Step 6: Final answer
    x = 365,585.30

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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.