Home / 763,616.11-1,145,406.39-384,434.96

Finding the Fourth Proportional to 763,616.11, 1,145,406.39 and 384,434.96

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Solution

The fourth proportional to 763,616.11, 1,145,406.39 and 384,434.96 is: 576,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,616.11 : 1,145,406.39 = 384,434.96 : x
  2. Step 2: Convert to fraction form
    763,616.11/1,145,406.39 = 384,434.96/x
  3. Step 3: Cross multiply
    763,616.11x = 1,145,406.39 × 384,434.96
  4. Step 4: Simplify right side
    763,616.11x = 440,334,262,241.31
  5. Step 5: Solve for x
    x = 440,334,262,241.31/763,616.11
  6. Step 6: Final answer
    x = 576,643.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.