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Finding the Fourth Proportional to 289,220.40, 433,393.20 and 244,605.60

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Solution

The fourth proportional to 289,220.40, 433,393.20 and 244,605.60 is: 366,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,220.40 : 433,393.20 = 244,605.60 : x
  2. Step 2: Convert to fraction form
    289,220.40/433,393.20 = 244,605.60/x
  3. Step 3: Cross multiply
    289,220.40x = 433,393.20 × 244,605.60
  4. Step 4: Simplify right side
    289,220.40x = 106,010,403,721.92
  5. Step 5: Solve for x
    x = 106,010,403,721.92/289,220.40
  6. Step 6: Final answer
    x = 366,538.47

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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.