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Finding the Fourth Proportional to 968,854.80, 1,453,109.40 and 613,232.40

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Solution

The fourth proportional to 968,854.80, 1,453,109.40 and 613,232.40 is: 919,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,854.80 : 1,453,109.40 = 613,232.40 : x
  2. Step 2: Convert to fraction form
    968,854.80/1,453,109.40 = 613,232.40/x
  3. Step 3: Cross multiply
    968,854.80x = 1,453,109.40 × 613,232.40
  4. Step 4: Simplify right side
    968,854.80x = 891,093,764,824.56
  5. Step 5: Solve for x
    x = 891,093,764,824.56/968,854.80
  6. Step 6: Final answer
    x = 919,739.23

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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.