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Finding the Fourth Proportional to 613,616.28, 846,893.71 and 395,763.72

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Solution

The fourth proportional to 613,616.28, 846,893.71 and 395,763.72 is: 546,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,616.28 : 846,893.71 = 395,763.72 : x
  2. Step 2: Convert to fraction form
    613,616.28/846,893.71 = 395,763.72/x
  3. Step 3: Cross multiply
    613,616.28x = 846,893.71 × 395,763.72
  4. Step 4: Simplify right side
    613,616.28x = 335,169,805,114.20
  5. Step 5: Solve for x
    x = 335,169,805,114.20/613,616.28
  6. Step 6: Final answer
    x = 546,220.52

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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.