Home / 939,359.76-1,407,173.40-517,589.52

Finding the Fourth Proportional to 939,359.76, 1,407,173.40 and 517,589.52

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Solution

The fourth proportional to 939,359.76, 1,407,173.40 and 517,589.52 is: 775,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,359.76 : 1,407,173.40 = 517,589.52 : x
  2. Step 2: Convert to fraction form
    939,359.76/1,407,173.40 = 517,589.52/x
  3. Step 3: Cross multiply
    939,359.76x = 1,407,173.40 × 517,589.52
  4. Step 4: Simplify right side
    939,359.76x = 728,338,204,662.77
  5. Step 5: Solve for x
    x = 728,338,204,662.77/939,359.76
  6. Step 6: Final answer
    x = 775,355.98

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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.