Home / 638,695.50-958,043.40-259,822.35

Finding the Fourth Proportional to 638,695.50, 958,043.40 and 259,822.35

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Solution

The fourth proportional to 638,695.50, 958,043.40 and 259,822.35 is: 389,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,695.50 : 958,043.40 = 259,822.35 : x
  2. Step 2: Convert to fraction form
    638,695.50/958,043.40 = 259,822.35/x
  3. Step 3: Cross multiply
    638,695.50x = 958,043.40 × 259,822.35
  4. Step 4: Simplify right side
    638,695.50x = 248,921,092,156.99
  5. Step 5: Solve for x
    x = 248,921,092,156.99/638,695.50
  6. Step 6: Final answer
    x = 389,733.59

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.