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Finding the Fourth Proportional to 358,431.59, 494,631.67 and 197,283.17

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Solution

The fourth proportional to 358,431.59, 494,631.67 and 197,283.17 is: 272,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,431.59 : 494,631.67 = 197,283.17 : x
  2. Step 2: Convert to fraction form
    358,431.59/494,631.67 = 197,283.17/x
  3. Step 3: Cross multiply
    358,431.59x = 494,631.67 × 197,283.17
  4. Step 4: Simplify right side
    358,431.59x = 97,582,502,853.58
  5. Step 5: Solve for x
    x = 97,582,502,853.58/358,431.59
  6. Step 6: Final answer
    x = 272,248.61

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1.5x scale

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.