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Finding the Fourth Proportional to 340,017.89, 469,218.15 and 187,047.14

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Solution

The fourth proportional to 340,017.89, 469,218.15 and 187,047.14 is: 258,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,017.89 : 469,218.15 = 187,047.14 : x
  2. Step 2: Convert to fraction form
    340,017.89/469,218.15 = 187,047.14/x
  3. Step 3: Cross multiply
    340,017.89x = 469,218.15 × 187,047.14
  4. Step 4: Simplify right side
    340,017.89x = 87,765,910,647.50
  5. Step 5: Solve for x
    x = 87,765,910,647.50/340,017.89
  6. Step 6: Final answer
    x = 258,121.45

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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.