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Finding the Fourth Proportional to 321,677.65, 443,968.39 and 178,483.83

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Solution

The fourth proportional to 321,677.65, 443,968.39 and 178,483.83 is: 246,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,677.65 : 443,968.39 = 178,483.83 : x
  2. Step 2: Convert to fraction form
    321,677.65/443,968.39 = 178,483.83/x
  3. Step 3: Cross multiply
    321,677.65x = 443,968.39 × 178,483.83
  4. Step 4: Simplify right side
    321,677.65x = 79,241,178,646.13
  5. Step 5: Solve for x
    x = 79,241,178,646.13/321,677.65
  6. Step 6: Final answer
    x = 246,337.22

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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.