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Finding the Fourth Proportional to 401,535.36, 554,055.84 and 231,737.76

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Solution

The fourth proportional to 401,535.36, 554,055.84 and 231,737.76 is: 319,761.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,535.36 : 554,055.84 = 231,737.76 : x
  2. Step 2: Convert to fraction form
    401,535.36/554,055.84 = 231,737.76/x
  3. Step 3: Cross multiply
    401,535.36x = 554,055.84 × 231,737.76
  4. Step 4: Simplify right side
    401,535.36x = 128,395,659,276.52
  5. Step 5: Solve for x
    x = 128,395,659,276.52/401,535.36
  6. Step 6: Final answer
    x = 319,761.77

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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.