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Finding the Fourth Proportional to 737,421.66, 1,017,661.58 and 415,143.95

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Solution

The fourth proportional to 737,421.66, 1,017,661.58 and 415,143.95 is: 572,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,421.66 : 1,017,661.58 = 415,143.95 : x
  2. Step 2: Convert to fraction form
    737,421.66/1,017,661.58 = 415,143.95/x
  3. Step 3: Cross multiply
    737,421.66x = 1,017,661.58 × 415,143.95
  4. Step 4: Simplify right side
    737,421.66x = 422,476,040,920.41
  5. Step 5: Solve for x
    x = 422,476,040,920.41/737,421.66
  6. Step 6: Final answer
    x = 572,909.73

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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.