Home / 856,333.80-1,284,567.12-257,248.08

Finding the Fourth Proportional to 856,333.80, 1,284,567.12 and 257,248.08

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Solution

The fourth proportional to 856,333.80, 1,284,567.12 and 257,248.08 is: 385,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,333.80 : 1,284,567.12 = 257,248.08 : x
  2. Step 2: Convert to fraction form
    856,333.80/1,284,567.12 = 257,248.08/x
  3. Step 3: Cross multiply
    856,333.80x = 1,284,567.12 × 257,248.08
  4. Step 4: Simplify right side
    856,333.80x = 330,452,425,251.13
  5. Step 5: Solve for x
    x = 330,452,425,251.13/856,333.80
  6. Step 6: Final answer
    x = 385,892.07

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