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Finding the Fourth Proportional to 297,923.60, 446,593.80 and 266,430.80

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Solution

The fourth proportional to 297,923.60, 446,593.80 and 266,430.80 is: 399,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,923.60 : 446,593.80 = 266,430.80 : x
  2. Step 2: Convert to fraction form
    297,923.60/446,593.80 = 266,430.80/x
  3. Step 3: Cross multiply
    297,923.60x = 446,593.80 × 266,430.80
  4. Step 4: Simplify right side
    297,923.60x = 118,986,343,409.04
  5. Step 5: Solve for x
    x = 118,986,343,409.04/297,923.60
  6. Step 6: Final answer
    x = 399,385.42

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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.