Home / 913,621.20-1,366,543.80-819,531.60

Finding the Fourth Proportional to 913,621.20, 1,366,543.80 and 819,531.60

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Solution

The fourth proportional to 913,621.20, 1,366,543.80 and 819,531.60 is: 1,225,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,621.20 : 1,366,543.80 = 819,531.60 : x
  2. Step 2: Convert to fraction form
    913,621.20/1,366,543.80 = 819,531.60/x
  3. Step 3: Cross multiply
    913,621.20x = 1,366,543.80 × 819,531.60
  4. Step 4: Simplify right side
    913,621.20x = 1,119,925,826,884.08
  5. Step 5: Solve for x
    x = 1,119,925,826,884.08/913,621.20
  6. Step 6: Final answer
    x = 1,225,809.81

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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.