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Finding the Fourth Proportional to 295,539.40, 443,309.10 and 266,969.80

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Solution

The fourth proportional to 295,539.40, 443,309.10 and 266,969.80 is: 400,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,539.40 : 443,309.10 = 266,969.80 : x
  2. Step 2: Convert to fraction form
    295,539.40/443,309.10 = 266,969.80/x
  3. Step 3: Cross multiply
    295,539.40x = 443,309.10 × 266,969.80
  4. Step 4: Simplify right side
    295,539.40x = 118,350,141,765.18
  5. Step 5: Solve for x
    x = 118,350,141,765.18/295,539.40
  6. Step 6: Final answer
    x = 400,454.70

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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.