Home / 938,854.53-1,295,607.78-509,129.46

Finding the Fourth Proportional to 938,854.53, 1,295,607.78 and 509,129.46

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Solution

The fourth proportional to 938,854.53, 1,295,607.78 and 509,129.46 is: 702,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,854.53 : 1,295,607.78 = 509,129.46 : x
  2. Step 2: Convert to fraction form
    938,854.53/1,295,607.78 = 509,129.46/x
  3. Step 3: Cross multiply
    938,854.53x = 1,295,607.78 × 509,129.46
  4. Step 4: Simplify right side
    938,854.53x = 659,632,089,403.20
  5. Step 5: Solve for x
    x = 659,632,089,403.20/938,854.53
  6. Step 6: Final answer
    x = 702,592.43

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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.