Home / 633,486.02-873,879.27-391,691.30

Finding the Fourth Proportional to 633,486.02, 873,879.27 and 391,691.30

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Solution

The fourth proportional to 633,486.02, 873,879.27 and 391,691.30 is: 540,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,486.02 : 873,879.27 = 391,691.30 : x
  2. Step 2: Convert to fraction form
    633,486.02/873,879.27 = 391,691.30/x
  3. Step 3: Cross multiply
    633,486.02x = 873,879.27 × 391,691.30
  4. Step 4: Simplify right side
    633,486.02x = 342,290,907,309.35
  5. Step 5: Solve for x
    x = 342,290,907,309.35/633,486.02
  6. Step 6: Final answer
    x = 540,329.06

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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.