Home / 939,125.43-1,295,991.77-509,405.04

Finding the Fourth Proportional to 939,125.43, 1,295,991.77 and 509,405.04

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Solution

The fourth proportional to 939,125.43, 1,295,991.77 and 509,405.04 is: 702,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,125.43 : 1,295,991.77 = 509,405.04 : x
  2. Step 2: Convert to fraction form
    939,125.43/1,295,991.77 = 509,405.04/x
  3. Step 3: Cross multiply
    939,125.43x = 1,295,991.77 × 509,405.04
  4. Step 4: Simplify right side
    939,125.43x = 660,184,736,889.50
  5. Step 5: Solve for x
    x = 660,184,736,889.50/939,125.43
  6. Step 6: Final answer
    x = 702,978.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.