Home / 621,963.88-931,973.82-432,793.85

Finding the Fourth Proportional to 621,963.88, 931,973.82 and 432,793.85

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Solution

The fourth proportional to 621,963.88, 931,973.82 and 432,793.85 is: 648,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,963.88 : 931,973.82 = 432,793.85 : x
  2. Step 2: Convert to fraction form
    621,963.88/931,973.82 = 432,793.85/x
  3. Step 3: Cross multiply
    621,963.88x = 931,973.82 × 432,793.85
  4. Step 4: Simplify right side
    621,963.88x = 403,352,531,374.16
  5. Step 5: Solve for x
    x = 403,352,531,374.16/621,963.88
  6. Step 6: Final answer
    x = 648,514.40

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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.