Home / 807,799.14-1,210,370.04-640,395.36

Finding the Fourth Proportional to 807,799.14, 1,210,370.04 and 640,395.36

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Solution

The fourth proportional to 807,799.14, 1,210,370.04 and 640,395.36 is: 959,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,799.14 : 1,210,370.04 = 640,395.36 : x
  2. Step 2: Convert to fraction form
    807,799.14/1,210,370.04 = 640,395.36/x
  3. Step 3: Cross multiply
    807,799.14x = 1,210,370.04 × 640,395.36
  4. Step 4: Simplify right side
    807,799.14x = 775,115,357,499.01
  5. Step 5: Solve for x
    x = 775,115,357,499.01/807,799.14
  6. Step 6: Final answer
    x = 959,539.72

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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.