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Finding the Fourth Proportional to 415,065.92, 621,633.47 and 400,682.41

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Solution

The fourth proportional to 415,065.92, 621,633.47 and 400,682.41 is: 600,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,065.92 : 621,633.47 = 400,682.41 : x
  2. Step 2: Convert to fraction form
    415,065.92/621,633.47 = 400,682.41/x
  3. Step 3: Cross multiply
    415,065.92x = 621,633.47 × 400,682.41
  4. Step 4: Simplify right side
    415,065.92x = 249,077,596,896.26
  5. Step 5: Solve for x
    x = 249,077,596,896.26/415,065.92
  6. Step 6: Final answer
    x = 600,091.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.