Home / 684,495.94-944,225.18-397,984.36

Finding the Fourth Proportional to 684,495.94, 944,225.18 and 397,984.36

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Solution

The fourth proportional to 684,495.94, 944,225.18 and 397,984.36 is: 548,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,495.94 : 944,225.18 = 397,984.36 : x
  2. Step 2: Convert to fraction form
    684,495.94/944,225.18 = 397,984.36/x
  3. Step 3: Cross multiply
    684,495.94x = 944,225.18 × 397,984.36
  4. Step 4: Simplify right side
    684,495.94x = 375,786,853,958.19
  5. Step 5: Solve for x
    x = 375,786,853,958.19/684,495.94
  6. Step 6: Final answer
    x = 548,997.93

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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.