Home / 665,933.60-998,734.32-261,208.06

Finding the Fourth Proportional to 665,933.60, 998,734.32 and 261,208.06

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Solution

The fourth proportional to 665,933.60, 998,734.32 and 261,208.06 is: 391,746.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,933.60 : 998,734.32 = 261,208.06 : x
  2. Step 2: Convert to fraction form
    665,933.60/998,734.32 = 261,208.06/x
  3. Step 3: Cross multiply
    665,933.60x = 998,734.32 × 261,208.06
  4. Step 4: Simplify right side
    665,933.60x = 260,877,451,685.78
  5. Step 5: Solve for x
    x = 260,877,451,685.78/665,933.60
  6. Step 6: Final answer
    x = 391,746.94

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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.