Home / 356,298.59-491,555.26-203,345.28

Finding the Fourth Proportional to 356,298.59, 491,555.26 and 203,345.28

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Solution

The fourth proportional to 356,298.59, 491,555.26 and 203,345.28 is: 280,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,298.59 : 491,555.26 = 203,345.28 : x
  2. Step 2: Convert to fraction form
    356,298.59/491,555.26 = 203,345.28/x
  3. Step 3: Cross multiply
    356,298.59x = 491,555.26 × 203,345.28
  4. Step 4: Simplify right side
    356,298.59x = 99,955,441,471.81
  5. Step 5: Solve for x
    x = 99,955,441,471.81/356,298.59
  6. Step 6: Final answer
    x = 280,538.41

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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.