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Finding the Fourth Proportional to 618,602.76, 927,641.52 and 219,344.04

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Solution

The fourth proportional to 618,602.76, 927,641.52 and 219,344.04 is: 328,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,602.76 : 927,641.52 = 219,344.04 : x
  2. Step 2: Convert to fraction form
    618,602.76/927,641.52 = 219,344.04/x
  3. Step 3: Cross multiply
    618,602.76x = 927,641.52 × 219,344.04
  4. Step 4: Simplify right side
    618,602.76x = 203,472,638,668.54
  5. Step 5: Solve for x
    x = 203,472,638,668.54/618,602.76
  6. Step 6: Final answer
    x = 328,922.94

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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.