Home / 689,249.16-951,108.66-383,326.11

Finding the Fourth Proportional to 689,249.16, 951,108.66 and 383,326.11

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Solution

The fourth proportional to 689,249.16, 951,108.66 and 383,326.11 is: 528,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,249.16 : 951,108.66 = 383,326.11 : x
  2. Step 2: Convert to fraction form
    689,249.16/951,108.66 = 383,326.11/x
  3. Step 3: Cross multiply
    689,249.16x = 951,108.66 × 383,326.11
  4. Step 4: Simplify right side
    689,249.16x = 364,584,782,825.11
  5. Step 5: Solve for x
    x = 364,584,782,825.11/689,249.16
  6. Step 6: Final answer
    x = 528,959.34

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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.