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Finding the Fourth Proportional to 358,391.46, 494,613.36 and 197,279.22

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Solution

The fourth proportional to 358,391.46, 494,613.36 and 197,279.22 is: 272,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,391.46 : 494,613.36 = 197,279.22 : x
  2. Step 2: Convert to fraction form
    358,391.46/494,613.36 = 197,279.22/x
  3. Step 3: Cross multiply
    358,391.46x = 494,613.36 × 197,279.22
  4. Step 4: Simplify right side
    358,391.46x = 97,576,937,862.38
  5. Step 5: Solve for x
    x = 97,576,937,862.38/358,391.46
  6. Step 6: Final answer
    x = 272,263.57

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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.