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Finding the Fourth Proportional to 330,124.72, 455,106.66 and 234,596.56

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Solution

The fourth proportional to 330,124.72, 455,106.66 and 234,596.56 is: 323,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,124.72 : 455,106.66 = 234,596.56 : x
  2. Step 2: Convert to fraction form
    330,124.72/455,106.66 = 234,596.56/x
  3. Step 3: Cross multiply
    330,124.72x = 455,106.66 × 234,596.56
  4. Step 4: Simplify right side
    330,124.72x = 106,766,456,869.09
  5. Step 5: Solve for x
    x = 106,766,456,869.09/330,124.72
  6. Step 6: Final answer
    x = 323,412.49

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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.