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Finding the Fourth Proportional to 336,145.30, 504,217.95 and 260,037.70

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Solution

The fourth proportional to 336,145.30, 504,217.95 and 260,037.70 is: 390,056.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,145.30 : 504,217.95 = 260,037.70 : x
  2. Step 2: Convert to fraction form
    336,145.30/504,217.95 = 260,037.70/x
  3. Step 3: Cross multiply
    336,145.30x = 504,217.95 × 260,037.70
  4. Step 4: Simplify right side
    336,145.30x = 131,115,676,016.72
  5. Step 5: Solve for x
    x = 131,115,676,016.72/336,145.30
  6. Step 6: Final answer
    x = 390,056.55

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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.