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Finding the Fourth Proportional to 439,516.88, 606,530.76 and 238,308.56

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Solution

The fourth proportional to 439,516.88, 606,530.76 and 238,308.56 is: 328,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,516.88 : 606,530.76 = 238,308.56 : x
  2. Step 2: Convert to fraction form
    439,516.88/606,530.76 = 238,308.56/x
  3. Step 3: Cross multiply
    439,516.88x = 606,530.76 × 238,308.56
  4. Step 4: Simplify right side
    439,516.88x = 144,541,472,011.31
  5. Step 5: Solve for x
    x = 144,541,472,011.31/439,516.88
  6. Step 6: Final answer
    x = 328,864.44

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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.