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Finding the Fourth Proportional to 373,701.57, 515,477.70 and 266,306.10

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Solution

The fourth proportional to 373,701.57, 515,477.70 and 266,306.10 is: 367,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,701.57 : 515,477.70 = 266,306.10 : x
  2. Step 2: Convert to fraction form
    373,701.57/515,477.70 = 266,306.10/x
  3. Step 3: Cross multiply
    373,701.57x = 515,477.70 × 266,306.10
  4. Step 4: Simplify right side
    373,701.57x = 137,274,855,923.97
  5. Step 5: Solve for x
    x = 137,274,855,923.97/373,701.57
  6. Step 6: Final answer
    x = 367,338.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.