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Finding the Fourth Proportional to 343,613.53, 474,243.54 and 190,700.83

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Solution

The fourth proportional to 343,613.53, 474,243.54 and 190,700.83 is: 263,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,613.53 : 474,243.54 = 190,700.83 : x
  2. Step 2: Convert to fraction form
    343,613.53/474,243.54 = 190,700.83/x
  3. Step 3: Cross multiply
    343,613.53x = 474,243.54 × 190,700.83
  4. Step 4: Simplify right side
    343,613.53x = 90,438,636,700.14
  5. Step 5: Solve for x
    x = 90,438,636,700.14/343,613.53
  6. Step 6: Final answer
    x = 263,198.71

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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.