Home / 863,569.28-1,191,318.88-561,653.12

Finding the Fourth Proportional to 863,569.28, 1,191,318.88 and 561,653.12

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Solution

The fourth proportional to 863,569.28, 1,191,318.88 and 561,653.12 is: 774,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,569.28 : 1,191,318.88 = 561,653.12 : x
  2. Step 2: Convert to fraction form
    863,569.28/1,191,318.88 = 561,653.12/x
  3. Step 3: Cross multiply
    863,569.28x = 1,191,318.88 × 561,653.12
  4. Step 4: Simplify right side
    863,569.28x = 669,107,965,866.91
  5. Step 5: Solve for x
    x = 669,107,965,866.91/863,569.28
  6. Step 6: Final answer
    x = 774,816.78

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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.