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Finding the Fourth Proportional to 355,646.20, 532,691.70 and 276,136.60

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Solution

The fourth proportional to 355,646.20, 532,691.70 and 276,136.60 is: 413,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,646.20 : 532,691.70 = 276,136.60 : x
  2. Step 2: Convert to fraction form
    355,646.20/532,691.70 = 276,136.60/x
  3. Step 3: Cross multiply
    355,646.20x = 532,691.70 × 276,136.60
  4. Step 4: Simplify right side
    355,646.20x = 147,095,674,886.22
  5. Step 5: Solve for x
    x = 147,095,674,886.22/355,646.20
  6. Step 6: Final answer
    x = 413,601.14

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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.