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Finding the Fourth Proportional to 358,511.60, 537,767.40 and 274,530.80

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Solution

The fourth proportional to 358,511.60, 537,767.40 and 274,530.80 is: 411,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,511.60 : 537,767.40 = 274,530.80 : x
  2. Step 2: Convert to fraction form
    358,511.60/537,767.40 = 274,530.80/x
  3. Step 3: Cross multiply
    358,511.60x = 537,767.40 × 274,530.80
  4. Step 4: Simplify right side
    358,511.60x = 147,633,714,535.92
  5. Step 5: Solve for x
    x = 147,633,714,535.92/358,511.60
  6. Step 6: Final answer
    x = 411,796.20

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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.