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Finding the Fourth Proportional to 424,128.39, 585,297.81 and 233,142.95

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Solution

The fourth proportional to 424,128.39, 585,297.81 and 233,142.95 is: 321,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,128.39 : 585,297.81 = 233,142.95 : x
  2. Step 2: Convert to fraction form
    424,128.39/585,297.81 = 233,142.95/x
  3. Step 3: Cross multiply
    424,128.39x = 585,297.81 × 233,142.95
  4. Step 4: Simplify right side
    424,128.39x = 136,458,055,125.45
  5. Step 5: Solve for x
    x = 136,458,055,125.45/424,128.39
  6. Step 6: Final answer
    x = 321,737.61

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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.