Home / 641,714.49-885,566.19-355,234.58

Finding the Fourth Proportional to 641,714.49, 885,566.19 and 355,234.58

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Solution

The fourth proportional to 641,714.49, 885,566.19 and 355,234.58 is: 490,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,714.49 : 885,566.19 = 355,234.58 : x
  2. Step 2: Convert to fraction form
    641,714.49/885,566.19 = 355,234.58/x
  3. Step 3: Cross multiply
    641,714.49x = 885,566.19 × 355,234.58
  4. Step 4: Simplify right side
    641,714.49x = 314,583,734,660.92
  5. Step 5: Solve for x
    x = 314,583,734,660.92/641,714.49
  6. Step 6: Final answer
    x = 490,223.83

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1.5x scale

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.