Home / 356,278.51-491,659.39-203,365.19

Finding the Fourth Proportional to 356,278.51, 491,659.39 and 203,365.19

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Solution

The fourth proportional to 356,278.51, 491,659.39 and 203,365.19 is: 280,641.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,278.51 : 491,659.39 = 203,365.19 : x
  2. Step 2: Convert to fraction form
    356,278.51/491,659.39 = 203,365.19/x
  3. Step 3: Cross multiply
    356,278.51x = 491,659.39 × 203,365.19
  4. Step 4: Simplify right side
    356,278.51x = 99,986,402,836.48
  5. Step 5: Solve for x
    x = 99,986,402,836.48/356,278.51
  6. Step 6: Final answer
    x = 280,641.13

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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.