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Finding the Fourth Proportional to 358,482.11, 494,696.57 and 197,335.71

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Solution

The fourth proportional to 358,482.11, 494,696.57 and 197,335.71 is: 272,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,482.11 : 494,696.57 = 197,335.71 : x
  2. Step 2: Convert to fraction form
    358,482.11/494,696.57 = 197,335.71/x
  3. Step 3: Cross multiply
    358,482.11x = 494,696.57 × 197,335.71
  4. Step 4: Simplify right side
    358,482.11x = 97,621,297,888.84
  5. Step 5: Solve for x
    x = 97,621,297,888.84/358,482.11
  6. Step 6: Final answer
    x = 272,318.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.