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Finding the Fourth Proportional to 285,663.33, 394,214.72 and 156,601.58

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Solution

The fourth proportional to 285,663.33, 394,214.72 and 156,601.58 is: 216,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,663.33 : 394,214.72 = 156,601.58 : x
  2. Step 2: Convert to fraction form
    285,663.33/394,214.72 = 156,601.58/x
  3. Step 3: Cross multiply
    285,663.33x = 394,214.72 × 156,601.58
  4. Step 4: Simplify right side
    285,663.33x = 61,734,645,257.18
  5. Step 5: Solve for x
    x = 61,734,645,257.18/285,663.33
  6. Step 6: Final answer
    x = 216,109.80

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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.