Home / 719,633.70-993,090.24-397,341.18

Finding the Fourth Proportional to 719,633.70, 993,090.24 and 397,341.18

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Solution

The fourth proportional to 719,633.70, 993,090.24 and 397,341.18 is: 548,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,633.70 : 993,090.24 = 397,341.18 : x
  2. Step 2: Convert to fraction form
    719,633.70/993,090.24 = 397,341.18/x
  3. Step 3: Cross multiply
    719,633.70x = 993,090.24 × 397,341.18
  4. Step 4: Simplify right side
    719,633.70x = 394,595,647,808.08
  5. Step 5: Solve for x
    x = 394,595,647,808.08/719,633.70
  6. Step 6: Final answer
    x = 548,328.47

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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.