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Finding the Fourth Proportional to 355,564.20, 532,568.70 and 276,054.60

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Solution

The fourth proportional to 355,564.20, 532,568.70 and 276,054.60 is: 413,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,564.20 : 532,568.70 = 276,054.60 : x
  2. Step 2: Convert to fraction form
    355,564.20/532,568.70 = 276,054.60/x
  3. Step 3: Cross multiply
    355,564.20x = 532,568.70 × 276,054.60
  4. Step 4: Simplify right side
    355,564.20x = 147,018,039,451.02
  5. Step 5: Solve for x
    x = 147,018,039,451.02/355,564.20
  6. Step 6: Final answer
    x = 413,478.18

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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.