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Finding the Fourth Proportional to 336,522.47, 505,116.23 and 147,113.57

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Solution

The fourth proportional to 336,522.47, 505,116.23 and 147,113.57 is: 220,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,522.47 : 505,116.23 = 147,113.57 : x
  2. Step 2: Convert to fraction form
    336,522.47/505,116.23 = 147,113.57/x
  3. Step 3: Cross multiply
    336,522.47x = 505,116.23 × 147,113.57
  4. Step 4: Simplify right side
    336,522.47x = 74,309,448,599.09
  5. Step 5: Solve for x
    x = 74,309,448,599.09/336,522.47
  6. Step 6: Final answer
    x = 220,815.71

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1.5x scale

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.