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Finding the Fourth Proportional to 417,685.51, 576,406.56 and 226,698.93

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Solution

The fourth proportional to 417,685.51, 576,406.56 and 226,698.93 is: 312,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,685.51 : 576,406.56 = 226,698.93 : x
  2. Step 2: Convert to fraction form
    417,685.51/576,406.56 = 226,698.93/x
  3. Step 3: Cross multiply
    417,685.51x = 576,406.56 × 226,698.93
  4. Step 4: Simplify right side
    417,685.51x = 130,670,750,396.98
  5. Step 5: Solve for x
    x = 130,670,750,396.98/417,685.51
  6. Step 6: Final answer
    x = 312,844.83

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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.