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Finding the Fourth Proportional to 361,505.76, 498,877.56 and 200,361.12

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Solution

The fourth proportional to 361,505.76, 498,877.56 and 200,361.12 is: 276,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,505.76 : 498,877.56 = 200,361.12 : x
  2. Step 2: Convert to fraction form
    361,505.76/498,877.56 = 200,361.12/x
  3. Step 3: Cross multiply
    361,505.76x = 498,877.56 × 200,361.12
  4. Step 4: Simplify right side
    361,505.76x = 99,955,666,664.47
  5. Step 5: Solve for x
    x = 99,955,666,664.47/361,505.76
  6. Step 6: Final answer
    x = 276,498.13

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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.