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Finding the Fourth Proportional to 681,593.60, 940,603.04 and 395,283.52

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Solution

The fourth proportional to 681,593.60, 940,603.04 and 395,283.52 is: 545,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,593.60 : 940,603.04 = 395,283.52 : x
  2. Step 2: Convert to fraction form
    681,593.60/940,603.04 = 395,283.52/x
  3. Step 3: Cross multiply
    681,593.60x = 940,603.04 × 395,283.52
  4. Step 4: Simplify right side
    681,593.60x = 371,804,880,573.90
  5. Step 5: Solve for x
    x = 371,804,880,573.90/681,593.60
  6. Step 6: Final answer
    x = 545,493.50

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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.