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Finding the Fourth Proportional to 321,233.69, 443,303.01 and 176,016.40

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Solution

The fourth proportional to 321,233.69, 443,303.01 and 176,016.40 is: 242,902.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,233.69 : 443,303.01 = 176,016.40 : x
  2. Step 2: Convert to fraction form
    321,233.69/443,303.01 = 176,016.40/x
  3. Step 3: Cross multiply
    321,233.69x = 443,303.01 × 176,016.40
  4. Step 4: Simplify right side
    321,233.69x = 78,028,599,929.36
  5. Step 5: Solve for x
    x = 78,028,599,929.36/321,233.69
  6. Step 6: Final answer
    x = 242,902.92

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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.