Home / 672,138.63-927,746.91-439,598.61

Finding the Fourth Proportional to 672,138.63, 927,746.91 and 439,598.61

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Solution

The fourth proportional to 672,138.63, 927,746.91 and 439,598.61 is: 606,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,138.63 : 927,746.91 = 439,598.61 : x
  2. Step 2: Convert to fraction form
    672,138.63/927,746.91 = 439,598.61/x
  3. Step 3: Cross multiply
    672,138.63x = 927,746.91 × 439,598.61
  4. Step 4: Simplify right side
    672,138.63x = 407,836,252,067.80
  5. Step 5: Solve for x
    x = 407,836,252,067.80/672,138.63
  6. Step 6: Final answer
    x = 606,774.01

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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.