Home / 1,190,401.20-1,785,237.30-391,498.20

Finding the Fourth Proportional to 1,190,401.20, 1,785,237.30 and 391,498.20

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Solution

The fourth proportional to 1,190,401.20, 1,785,237.30 and 391,498.20 is: 587,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,401.20 : 1,785,237.30 = 391,498.20 : x
  2. Step 2: Convert to fraction form
    1,190,401.20/1,785,237.30 = 391,498.20/x
  3. Step 3: Cross multiply
    1,190,401.20x = 1,785,237.30 × 391,498.20
  4. Step 4: Simplify right side
    1,190,401.20x = 698,917,189,522.86
  5. Step 5: Solve for x
    x = 698,917,189,522.86/1,190,401.20
  6. Step 6: Final answer
    x = 587,127.42

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1.5x scale

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.