Home / 677,468.58-934,839.27-391,080.93

Finding the Fourth Proportional to 677,468.58, 934,839.27 and 391,080.93

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Solution

The fourth proportional to 677,468.58, 934,839.27 and 391,080.93 is: 539,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,468.58 : 934,839.27 = 391,080.93 : x
  2. Step 2: Convert to fraction form
    677,468.58/934,839.27 = 391,080.93/x
  3. Step 3: Cross multiply
    677,468.58x = 934,839.27 × 391,080.93
  4. Step 4: Simplify right side
    677,468.58x = 365,597,811,112.12
  5. Step 5: Solve for x
    x = 365,597,811,112.12/677,468.58
  6. Step 6: Final answer
    x = 539,652.79

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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.