Home / 627,224.36-865,573.09-385,664.74

Finding the Fourth Proportional to 627,224.36, 865,573.09 and 385,664.74

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Solution

The fourth proportional to 627,224.36, 865,573.09 and 385,664.74 is: 532,219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,224.36 : 865,573.09 = 385,664.74 : x
  2. Step 2: Convert to fraction form
    627,224.36/865,573.09 = 385,664.74/x
  3. Step 3: Cross multiply
    627,224.36x = 865,573.09 × 385,664.74
  4. Step 4: Simplify right side
    627,224.36x = 333,821,022,446.60
  5. Step 5: Solve for x
    x = 333,821,022,446.60/627,224.36
  6. Step 6: Final answer
    x = 532,219.48

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1.5x scale

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.