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Finding the Fourth Proportional to 538,749.17, 808,127.79 and 239,149.20

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Solution

The fourth proportional to 538,749.17, 808,127.79 and 239,149.20 is: 358,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,749.17 : 808,127.79 = 239,149.20 : x
  2. Step 2: Convert to fraction form
    538,749.17/808,127.79 = 239,149.20/x
  3. Step 3: Cross multiply
    538,749.17x = 808,127.79 × 239,149.20
  4. Step 4: Simplify right side
    538,749.17x = 193,263,114,476.27
  5. Step 5: Solve for x
    x = 193,263,114,476.27/538,749.17
  6. Step 6: Final answer
    x = 358,725.59

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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.