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Finding the Fourth Proportional to 338,834.56, 467,647.68 and 187,980.16

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Solution

The fourth proportional to 338,834.56, 467,647.68 and 187,980.16 is: 259,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,834.56 : 467,647.68 = 187,980.16 : x
  2. Step 2: Convert to fraction form
    338,834.56/467,647.68 = 187,980.16/x
  3. Step 3: Cross multiply
    338,834.56x = 467,647.68 × 187,980.16
  4. Step 4: Simplify right side
    338,834.56x = 87,908,485,710.03
  5. Step 5: Solve for x
    x = 87,908,485,710.03/338,834.56
  6. Step 6: Final answer
    x = 259,443.68

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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.