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Finding the Fourth Proportional to 321,602.90, 443,800.76 and 178,376.27

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Solution

The fourth proportional to 321,602.90, 443,800.76 and 178,376.27 is: 246,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,602.90 : 443,800.76 = 178,376.27 : x
  2. Step 2: Convert to fraction form
    321,602.90/443,800.76 = 178,376.27/x
  3. Step 3: Cross multiply
    321,602.90x = 443,800.76 × 178,376.27
  4. Step 4: Simplify right side
    321,602.90x = 79,163,521,081.08
  5. Step 5: Solve for x
    x = 79,163,521,081.08/321,602.90
  6. Step 6: Final answer
    x = 246,153.01

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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.