Home / 677,467.08-934,837.20-391,079.43

Finding the Fourth Proportional to 677,467.08, 934,837.20 and 391,079.43

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Solution

The fourth proportional to 677,467.08, 934,837.20 and 391,079.43 is: 539,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,467.08 : 934,837.20 = 391,079.43 : x
  2. Step 2: Convert to fraction form
    677,467.08/934,837.20 = 391,079.43/x
  3. Step 3: Cross multiply
    677,467.08x = 934,837.20 × 391,079.43
  4. Step 4: Simplify right side
    677,467.08x = 365,595,599,318.80
  5. Step 5: Solve for x
    x = 365,595,599,318.80/677,467.08
  6. Step 6: Final answer
    x = 539,650.72

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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.