Home / 445,931.43-668,999.30-193,254.31

Finding the Fourth Proportional to 445,931.43, 668,999.30 and 193,254.31

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Solution

The fourth proportional to 445,931.43, 668,999.30 and 193,254.31 is: 289,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,931.43 : 668,999.30 = 193,254.31 : x
  2. Step 2: Convert to fraction form
    445,931.43/668,999.30 = 193,254.31/x
  3. Step 3: Cross multiply
    445,931.43x = 668,999.30 × 193,254.31
  4. Step 4: Simplify right side
    445,931.43x = 129,286,995,305.90
  5. Step 5: Solve for x
    x = 129,286,995,305.90/445,931.43
  6. Step 6: Final answer
    x = 289,925.73

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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.