Home / 684,436.44-944,638.83-398,122.50

Finding the Fourth Proportional to 684,436.44, 944,638.83 and 398,122.50

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Solution

The fourth proportional to 684,436.44, 944,638.83 and 398,122.50 is: 549,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,436.44 : 944,638.83 = 398,122.50 : x
  2. Step 2: Convert to fraction form
    684,436.44/944,638.83 = 398,122.50/x
  3. Step 3: Cross multiply
    684,436.44x = 944,638.83 × 398,122.50
  4. Step 4: Simplify right side
    684,436.44x = 376,081,972,596.68
  5. Step 5: Solve for x
    x = 376,081,972,596.68/684,436.44
  6. Step 6: Final answer
    x = 549,476.84

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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.