Home / 352,914.23-487,020.35-199,981.53

Finding the Fourth Proportional to 352,914.23, 487,020.35 and 199,981.53

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Solution

The fourth proportional to 352,914.23, 487,020.35 and 199,981.53 is: 275,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,914.23 : 487,020.35 = 199,981.53 : x
  2. Step 2: Convert to fraction form
    352,914.23/487,020.35 = 199,981.53/x
  3. Step 3: Cross multiply
    352,914.23x = 487,020.35 × 199,981.53
  4. Step 4: Simplify right side
    352,914.23x = 97,395,074,734.14
  5. Step 5: Solve for x
    x = 97,395,074,734.14/352,914.23
  6. Step 6: Final answer
    x = 275,973.78

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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.