Home / 1,388,844.47-1,916,591.25-768,650.84

Finding the Fourth Proportional to 1,388,844.47, 1,916,591.25 and 768,650.84

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Solution

The fourth proportional to 1,388,844.47, 1,916,591.25 and 768,650.84 is: 1,060,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,844.47 : 1,916,591.25 = 768,650.84 : x
  2. Step 2: Convert to fraction form
    1,388,844.47/1,916,591.25 = 768,650.84/x
  3. Step 3: Cross multiply
    1,388,844.47x = 1,916,591.25 × 768,650.84
  4. Step 4: Simplify right side
    1,388,844.47x = 1,473,189,476,158.19
  5. Step 5: Solve for x
    x = 1,473,189,476,158.19/1,388,844.47
  6. Step 6: Final answer
    x = 1,060,730.35

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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.