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Finding the Fourth Proportional to 291,696.20, 437,544.30 and 249,705.80

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Solution

The fourth proportional to 291,696.20, 437,544.30 and 249,705.80 is: 374,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,696.20 : 437,544.30 = 249,705.80 : x
  2. Step 2: Convert to fraction form
    291,696.20/437,544.30 = 249,705.80/x
  3. Step 3: Cross multiply
    291,696.20x = 437,544.30 × 249,705.80
  4. Step 4: Simplify right side
    291,696.20x = 109,257,349,466.94
  5. Step 5: Solve for x
    x = 109,257,349,466.94/291,696.20
  6. Step 6: Final answer
    x = 374,558.70

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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.