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Finding the Fourth Proportional to 319,231.35, 478,552.95 and 108,722.88

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Solution

The fourth proportional to 319,231.35, 478,552.95 and 108,722.88 is: 162,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,231.35 : 478,552.95 = 108,722.88 : x
  2. Step 2: Convert to fraction form
    319,231.35/478,552.95 = 108,722.88/x
  3. Step 3: Cross multiply
    319,231.35x = 478,552.95 × 108,722.88
  4. Step 4: Simplify right side
    319,231.35x = 52,029,654,956.50
  5. Step 5: Solve for x
    x = 52,029,654,956.50/319,231.35
  6. Step 6: Final answer
    x = 162,984.16

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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.