Home / 403,539.11-556,842.77-248,465.78

Finding the Fourth Proportional to 403,539.11, 556,842.77 and 248,465.78

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Solution

The fourth proportional to 403,539.11, 556,842.77 and 248,465.78 is: 342,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,539.11 : 556,842.77 = 248,465.78 : x
  2. Step 2: Convert to fraction form
    403,539.11/556,842.77 = 248,465.78/x
  3. Step 3: Cross multiply
    403,539.11x = 556,842.77 × 248,465.78
  4. Step 4: Simplify right side
    403,539.11x = 138,356,372,178.78
  5. Step 5: Solve for x
    x = 138,356,372,178.78/403,539.11
  6. Step 6: Final answer
    x = 342,857.41

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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.