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Finding the Fourth Proportional to 321,235.22, 443,305.13 and 176,017.93

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Solution

The fourth proportional to 321,235.22, 443,305.13 and 176,017.93 is: 242,905.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,235.22 : 443,305.13 = 176,017.93 : x
  2. Step 2: Convert to fraction form
    321,235.22/443,305.13 = 176,017.93/x
  3. Step 3: Cross multiply
    321,235.22x = 443,305.13 × 176,017.93
  4. Step 4: Simplify right side
    321,235.22x = 78,029,649,352.63
  5. Step 5: Solve for x
    x = 78,029,649,352.63/321,235.22
  6. Step 6: Final answer
    x = 242,905.02

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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.