Home / 719,868.15-993,412.22-397,600.34

Finding the Fourth Proportional to 719,868.15, 993,412.22 and 397,600.34

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Solution

The fourth proportional to 719,868.15, 993,412.22 and 397,600.34 is: 548,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,868.15 : 993,412.22 = 397,600.34 : x
  2. Step 2: Convert to fraction form
    719,868.15/993,412.22 = 397,600.34/x
  3. Step 3: Cross multiply
    719,868.15x = 993,412.22 × 397,600.34
  4. Step 4: Simplify right side
    719,868.15x = 394,981,029,477.09
  5. Step 5: Solve for x
    x = 394,981,029,477.09/719,868.15
  6. Step 6: Final answer
    x = 548,685.24

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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.