Home / 430,131.92-644,777.40-193,534.16

Finding the Fourth Proportional to 430,131.92, 644,777.40 and 193,534.16

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Solution

The fourth proportional to 430,131.92, 644,777.40 and 193,534.16 is: 290,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,131.92 : 644,777.40 = 193,534.16 : x
  2. Step 2: Convert to fraction form
    430,131.92/644,777.40 = 193,534.16/x
  3. Step 3: Cross multiply
    430,131.92x = 644,777.40 × 193,534.16
  4. Step 4: Simplify right side
    430,131.92x = 124,786,452,495.98
  5. Step 5: Solve for x
    x = 124,786,452,495.98/430,131.92
  6. Step 6: Final answer
    x = 290,112.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.