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Finding the Fourth Proportional to 447,043.52, 616,927.39 and 243,098.48

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Solution

The fourth proportional to 447,043.52, 616,927.39 and 243,098.48 is: 335,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,043.52 : 616,927.39 = 243,098.48 : x
  2. Step 2: Convert to fraction form
    447,043.52/616,927.39 = 243,098.48/x
  3. Step 3: Cross multiply
    447,043.52x = 616,927.39 × 243,098.48
  4. Step 4: Simplify right side
    447,043.52x = 149,974,111,713.94
  5. Step 5: Solve for x
    x = 149,974,111,713.94/447,043.52
  6. Step 6: Final answer
    x = 335,479.89

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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.