Home / 642,714.10-886,973.45-356,234.41

Finding the Fourth Proportional to 642,714.10, 886,973.45 and 356,234.41

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Solution

The fourth proportional to 642,714.10, 886,973.45 and 356,234.41 is: 491,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,714.10 : 886,973.45 = 356,234.41 : x
  2. Step 2: Convert to fraction form
    642,714.10/886,973.45 = 356,234.41/x
  3. Step 3: Cross multiply
    642,714.10x = 886,973.45 × 356,234.41
  4. Step 4: Simplify right side
    642,714.10x = 315,970,463,646.42
  5. Step 5: Solve for x
    x = 315,970,463,646.42/642,714.10
  6. Step 6: Final answer
    x = 491,619.00

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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.