Home / 719,664.06-993,129.99-397,367.22

Finding the Fourth Proportional to 719,664.06, 993,129.99 and 397,367.22

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Solution

The fourth proportional to 719,664.06, 993,129.99 and 397,367.22 is: 548,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,664.06 : 993,129.99 = 397,367.22 : x
  2. Step 2: Convert to fraction form
    719,664.06/993,129.99 = 397,367.22/x
  3. Step 3: Cross multiply
    719,664.06x = 993,129.99 × 397,367.22
  4. Step 4: Simplify right side
    719,664.06x = 394,637,303,224.93
  5. Step 5: Solve for x
    x = 394,637,303,224.93/719,664.06
  6. Step 6: Final answer
    x = 548,363.22

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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.