Home / 827,747,234.60-1,240,565,843.10-439,755,938.60

Finding the Fourth Proportional to 827,747,234.60, 1,240,565,843.10 and 439,755,938.60

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Solution

The fourth proportional to 827,747,234.60, 1,240,565,843.10 and 439,755,938.60 is: 659,073,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,747,234.60 : 1,240,565,843.10 = 439,755,938.60 : x
  2. Step 2: Convert to fraction form
    827,747,234.60/1,240,565,843.10 = 439,755,938.60/x
  3. Step 3: Cross multiply
    827,747,234.60x = 1,240,565,843.10 × 439,755,938.60
  4. Step 4: Simplify right side
    827,747,234.60x = 545,546,196,727,540,800
  5. Step 5: Solve for x
    x = 545,546,196,727,540,800/827,747,234.60
  6. Step 6: Final answer
    x = 659,073,415.08

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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.