Home / 684,205.19-944,175.31-378,262.11

Finding the Fourth Proportional to 684,205.19, 944,175.31 and 378,262.11

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Solution

The fourth proportional to 684,205.19, 944,175.31 and 378,262.11 is: 521,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,205.19 : 944,175.31 = 378,262.11 : x
  2. Step 2: Convert to fraction form
    684,205.19/944,175.31 = 378,262.11/x
  3. Step 3: Cross multiply
    684,205.19x = 944,175.31 × 378,262.11
  4. Step 4: Simplify right side
    684,205.19x = 357,145,744,024.85
  5. Step 5: Solve for x
    x = 357,145,744,024.85/684,205.19
  6. Step 6: Final answer
    x = 521,986.32

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Double scale
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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.