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Finding the Fourth Proportional to 544,380.86, 751,229.16 and 302,668.76

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Solution

The fourth proportional to 544,380.86, 751,229.16 and 302,668.76 is: 417,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,380.86 : 751,229.16 = 302,668.76 : x
  2. Step 2: Convert to fraction form
    544,380.86/751,229.16 = 302,668.76/x
  3. Step 3: Cross multiply
    544,380.86x = 751,229.16 × 302,668.76
  4. Step 4: Simplify right side
    544,380.86x = 227,373,598,333.04
  5. Step 5: Solve for x
    x = 227,373,598,333.04/544,380.86
  6. Step 6: Final answer
    x = 417,673.76

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Half scale
Find fourth proportional to 1,088,761.72, 1,502,458.32 and 605,337.52
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.