Home / 677,467.83-934,838.24-391,080.18

Finding the Fourth Proportional to 677,467.83, 934,838.24 and 391,080.18

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Solution

The fourth proportional to 677,467.83, 934,838.24 and 391,080.18 is: 539,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,467.83 : 934,838.24 = 391,080.18 : x
  2. Step 2: Convert to fraction form
    677,467.83/934,838.24 = 391,080.18/x
  3. Step 3: Cross multiply
    677,467.83x = 934,838.24 × 391,080.18
  4. Step 4: Simplify right side
    677,467.83x = 365,596,705,214.68
  5. Step 5: Solve for x
    x = 365,596,705,214.68/677,467.83
  6. Step 6: Final answer
    x = 539,651.76

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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.