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Finding the Fourth Proportional to 622,175.60, 933,954.60 and 385,785.20

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Solution

The fourth proportional to 622,175.60, 933,954.60 and 385,785.20 is: 579,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,175.60 : 933,954.60 = 385,785.20 : x
  2. Step 2: Convert to fraction form
    622,175.60/933,954.60 = 385,785.20/x
  3. Step 3: Cross multiply
    622,175.60x = 933,954.60 × 385,785.20
  4. Step 4: Simplify right side
    622,175.60x = 360,305,862,151.92
  5. Step 5: Solve for x
    x = 360,305,862,151.92/622,175.60
  6. Step 6: Final answer
    x = 579,106.38

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1.5x scale

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.