Home / 677,464.08-934,833.07-391,076.43

Finding the Fourth Proportional to 677,464.08, 934,833.07 and 391,076.43

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Solution

The fourth proportional to 677,464.08, 934,833.07 and 391,076.43 is: 539,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,464.08 : 934,833.07 = 391,076.43 : x
  2. Step 2: Convert to fraction form
    677,464.08/934,833.07 = 391,076.43/x
  3. Step 3: Cross multiply
    677,464.08x = 934,833.07 × 391,076.43
  4. Step 4: Simplify right side
    677,464.08x = 365,591,174,444.96
  5. Step 5: Solve for x
    x = 365,591,174,444.96/677,464.08
  6. Step 6: Final answer
    x = 539,646.58

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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.