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Finding the Fourth Proportional to 443,342.69, 611,813.62 and 252,356.10

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Solution

The fourth proportional to 443,342.69, 611,813.62 and 252,356.10 is: 348,251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,342.69 : 611,813.62 = 252,356.10 : x
  2. Step 2: Convert to fraction form
    443,342.69/611,813.62 = 252,356.10/x
  3. Step 3: Cross multiply
    443,342.69x = 611,813.62 × 252,356.10
  4. Step 4: Simplify right side
    443,342.69x = 154,394,896,011.01
  5. Step 5: Solve for x
    x = 154,394,896,011.01/443,342.69
  6. Step 6: Final answer
    x = 348,251.81

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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.