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Finding the Fourth Proportional to 619,971.12, 930,053.88 and 264,987

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Solution

The fourth proportional to 619,971.12, 930,053.88 and 264,987 is: 397,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,971.12 : 930,053.88 = 264,987 : x
  2. Step 2: Convert to fraction form
    619,971.12/930,053.88 = 264,987/x
  3. Step 3: Cross multiply
    619,971.12x = 930,053.88 × 264,987
  4. Step 4: Simplify right side
    619,971.12x = 246,452,187,499.56
  5. Step 5: Solve for x
    x = 246,452,187,499.56/619,971.12
  6. Step 6: Final answer
    x = 397,522.05

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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.