Home / 1,289,885.30-1,934,832.63-391,334.66

Finding the Fourth Proportional to 1,289,885.30, 1,934,832.63 and 391,334.66

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Solution

The fourth proportional to 1,289,885.30, 1,934,832.63 and 391,334.66 is: 587,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,885.30 : 1,934,832.63 = 391,334.66 : x
  2. Step 2: Convert to fraction form
    1,289,885.30/1,934,832.63 = 391,334.66/x
  3. Step 3: Cross multiply
    1,289,885.30x = 1,934,832.63 × 391,334.66
  4. Step 4: Simplify right side
    1,289,885.30x = 757,167,069,417.96
  5. Step 5: Solve for x
    x = 757,167,069,417.96/1,289,885.30
  6. Step 6: Final answer
    x = 587,003.41

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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.