Home / 689,346.36-951,284.33-383,416.16

Finding the Fourth Proportional to 689,346.36, 951,284.33 and 383,416.16

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Solution

The fourth proportional to 689,346.36, 951,284.33 and 383,416.16 is: 529,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,346.36 : 951,284.33 = 383,416.16 : x
  2. Step 2: Convert to fraction form
    689,346.36/951,284.33 = 383,416.16/x
  3. Step 3: Cross multiply
    689,346.36x = 951,284.33 × 383,416.16
  4. Step 4: Simplify right side
    689,346.36x = 364,737,784,876.77
  5. Step 5: Solve for x
    x = 364,737,784,876.77/689,346.36
  6. Step 6: Final answer
    x = 529,106.71

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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.