Home / 689,291.74-951,150.03-383,318.59

Finding the Fourth Proportional to 689,291.74, 951,150.03 and 383,318.59

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Solution

The fourth proportional to 689,291.74, 951,150.03 and 383,318.59 is: 528,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,291.74 : 951,150.03 = 383,318.59 : x
  2. Step 2: Convert to fraction form
    689,291.74/951,150.03 = 383,318.59/x
  3. Step 3: Cross multiply
    689,291.74x = 951,150.03 × 383,318.59
  4. Step 4: Simplify right side
    689,291.74x = 364,593,488,378.06
  5. Step 5: Solve for x
    x = 364,593,488,378.06/689,291.74
  6. Step 6: Final answer
    x = 528,939.30

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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.