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Finding the Fourth Proportional to 321,232.69, 443,301.63 and 176,015.40

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Solution

The fourth proportional to 321,232.69, 443,301.63 and 176,015.40 is: 242,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,232.69 : 443,301.63 = 176,015.40 : x
  2. Step 2: Convert to fraction form
    321,232.69/443,301.63 = 176,015.40/x
  3. Step 3: Cross multiply
    321,232.69x = 443,301.63 × 176,015.40
  4. Step 4: Simplify right side
    321,232.69x = 78,027,911,948.63
  5. Step 5: Solve for x
    x = 78,027,911,948.63/321,232.69
  6. Step 6: Final answer
    x = 242,901.53

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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.