Home / 677,536.67-934,933.20-391,149.02

Finding the Fourth Proportional to 677,536.67, 934,933.20 and 391,149.02

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Solution

The fourth proportional to 677,536.67, 934,933.20 and 391,149.02 is: 539,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,536.67 : 934,933.20 = 391,149.02 : x
  2. Step 2: Convert to fraction form
    677,536.67/934,933.20 = 391,149.02/x
  3. Step 3: Cross multiply
    677,536.67x = 934,933.20 × 391,149.02
  4. Step 4: Simplify right side
    677,536.67x = 365,698,204,945.46
  5. Step 5: Solve for x
    x = 365,698,204,945.46/677,536.67
  6. Step 6: Final answer
    x = 539,746.73

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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.