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Finding the Fourth Proportional to 641,696.94, 963,491.58 and 357,941.88

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Solution

The fourth proportional to 641,696.94, 963,491.58 and 357,941.88 is: 537,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,696.94 : 963,491.58 = 357,941.88 : x
  2. Step 2: Convert to fraction form
    641,696.94/963,491.58 = 357,941.88/x
  3. Step 3: Cross multiply
    641,696.94x = 963,491.58 × 357,941.88
  4. Step 4: Simplify right side
    641,696.94x = 344,873,987,509.37
  5. Step 5: Solve for x
    x = 344,873,987,509.37/641,696.94
  6. Step 6: Final answer
    x = 537,440.60

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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.