Home / 643,551.12-892,169.34-609,425.72

Finding the Fourth Proportional to 643,551.12, 892,169.34 and 609,425.72

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Solution

The fourth proportional to 643,551.12, 892,169.34 and 609,425.72 is: 844,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,551.12 : 892,169.34 = 609,425.72 : x
  2. Step 2: Convert to fraction form
    643,551.12/892,169.34 = 609,425.72/x
  3. Step 3: Cross multiply
    643,551.12x = 892,169.34 × 609,425.72
  4. Step 4: Simplify right side
    643,551.12x = 543,710,937,930.58
  5. Step 5: Solve for x
    x = 543,710,937,930.58/643,551.12
  6. Step 6: Final answer
    x = 844,860.53

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.