Home / 863,640.45-1,191,438.72-500,854.14

Finding the Fourth Proportional to 863,640.45, 1,191,438.72 and 500,854.14

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Solution

The fourth proportional to 863,640.45, 1,191,438.72 and 500,854.14 is: 690,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,640.45 : 1,191,438.72 = 500,854.14 : x
  2. Step 2: Convert to fraction form
    863,640.45/1,191,438.72 = 500,854.14/x
  3. Step 3: Cross multiply
    863,640.45x = 1,191,438.72 × 500,854.14
  4. Step 4: Simplify right side
    863,640.45x = 596,737,015,468.30
  5. Step 5: Solve for x
    x = 596,737,015,468.30/863,640.45
  6. Step 6: Final answer
    x = 690,955.38

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Double scale
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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.