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Finding the Fourth Proportional to 366,947.55, 550,421.33 and 320,291.55

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Solution

The fourth proportional to 366,947.55, 550,421.33 and 320,291.55 is: 480,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,947.55 : 550,421.33 = 320,291.55 : x
  2. Step 2: Convert to fraction form
    366,947.55/550,421.33 = 320,291.55/x
  3. Step 3: Cross multiply
    366,947.55x = 550,421.33 × 320,291.55
  4. Step 4: Simplify right side
    366,947.55x = 176,295,299,337.30
  5. Step 5: Solve for x
    x = 176,295,299,337.30/366,947.55
  6. Step 6: Final answer
    x = 480,437.33

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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.