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Finding the Fourth Proportional to 321,779.76, 444,056.07 and 178,540.83

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Solution

The fourth proportional to 321,779.76, 444,056.07 and 178,540.83 is: 246,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,779.76 : 444,056.07 = 178,540.83 : x
  2. Step 2: Convert to fraction form
    321,779.76/444,056.07 = 178,540.83/x
  3. Step 3: Cross multiply
    321,779.76x = 444,056.07 × 178,540.83
  4. Step 4: Simplify right side
    321,779.76x = 79,282,139,304.34
  5. Step 5: Solve for x
    x = 79,282,139,304.34/321,779.76
  6. Step 6: Final answer
    x = 246,386.35

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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.