Home / 689,601.10-951,566.84-383,600.20

Finding the Fourth Proportional to 689,601.10, 951,566.84 and 383,600.20

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Solution

The fourth proportional to 689,601.10, 951,566.84 and 383,600.20 is: 529,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,601.10 : 951,566.84 = 383,600.20 : x
  2. Step 2: Convert to fraction form
    689,601.10/951,566.84 = 383,600.20/x
  3. Step 3: Cross multiply
    689,601.10x = 951,566.84 × 383,600.20
  4. Step 4: Simplify right side
    689,601.10x = 365,021,230,137.37
  5. Step 5: Solve for x
    x = 365,021,230,137.37/689,601.10
  6. Step 6: Final answer
    x = 529,322.29

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Double scale
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Similar ratio
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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.