Home / 1,190,015.90-1,785,250.11-391,527.62

Finding the Fourth Proportional to 1,190,015.90, 1,785,250.11 and 391,527.62

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Solution

The fourth proportional to 1,190,015.90, 1,785,250.11 and 391,527.62 is: 587,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,015.90 : 1,785,250.11 = 391,527.62 : x
  2. Step 2: Convert to fraction form
    1,190,015.90/1,785,250.11 = 391,527.62/x
  3. Step 3: Cross multiply
    1,190,015.90x = 1,785,250.11 × 391,527.62
  4. Step 4: Simplify right side
    1,190,015.90x = 698,974,726,673.04
  5. Step 5: Solve for x
    x = 698,974,726,673.04/1,190,015.90
  6. Step 6: Final answer
    x = 587,365.87

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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.