Home / 689,244.14-951,101.78-383,321.11

Finding the Fourth Proportional to 689,244.14, 951,101.78 and 383,321.11

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Solution

The fourth proportional to 689,244.14, 951,101.78 and 383,321.11 is: 528,952.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,244.14 : 951,101.78 = 383,321.11 : x
  2. Step 2: Convert to fraction form
    689,244.14/951,101.78 = 383,321.11/x
  3. Step 3: Cross multiply
    689,244.14x = 951,101.78 × 383,321.11
  4. Step 4: Simplify right side
    689,244.14x = 364,577,390,032.58
  5. Step 5: Solve for x
    x = 364,577,390,032.58/689,244.14
  6. Step 6: Final answer
    x = 528,952.47

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Double scale
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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.