Home / 640,825.59-961,333.95-235,986.66

Finding the Fourth Proportional to 640,825.59, 961,333.95 and 235,986.66

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Solution

The fourth proportional to 640,825.59, 961,333.95 and 235,986.66 is: 354,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,825.59 : 961,333.95 = 235,986.66 : x
  2. Step 2: Convert to fraction form
    640,825.59/961,333.95 = 235,986.66/x
  3. Step 3: Cross multiply
    640,825.59x = 961,333.95 × 235,986.66
  4. Step 4: Simplify right side
    640,825.59x = 226,861,988,005.11
  5. Step 5: Solve for x
    x = 226,861,988,005.11/640,825.59
  6. Step 6: Final answer
    x = 354,015.18

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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.