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Finding the Fourth Proportional to 442,203.48, 663,305.22 and 109,779.48

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Solution

The fourth proportional to 442,203.48, 663,305.22 and 109,779.48 is: 164,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,203.48 : 663,305.22 = 109,779.48 : x
  2. Step 2: Convert to fraction form
    442,203.48/663,305.22 = 109,779.48/x
  3. Step 3: Cross multiply
    442,203.48x = 663,305.22 × 109,779.48
  4. Step 4: Simplify right side
    442,203.48x = 72,817,302,132.89
  5. Step 5: Solve for x
    x = 72,817,302,132.89/442,203.48
  6. Step 6: Final answer
    x = 164,669.22

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.