Home / 1,281,696.80-1,920,471.60-807,533.60

Finding the Fourth Proportional to 1,281,696.80, 1,920,471.60 and 807,533.60

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Solution

The fourth proportional to 1,281,696.80, 1,920,471.60 and 807,533.60 is: 1,209,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,696.80 : 1,920,471.60 = 807,533.60 : x
  2. Step 2: Convert to fraction form
    1,281,696.80/1,920,471.60 = 807,533.60/x
  3. Step 3: Cross multiply
    1,281,696.80x = 1,920,471.60 × 807,533.60
  4. Step 4: Simplify right side
    1,281,696.80x = 1,550,845,344,845.76
  5. Step 5: Solve for x
    x = 1,550,845,344,845.76/1,281,696.80
  6. Step 6: Final answer
    x = 1,209,993.93

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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.