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Finding the Fourth Proportional to 386,378.83, 533,466.71 and 241,405.33

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Solution

The fourth proportional to 386,378.83, 533,466.71 and 241,405.33 is: 333,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,378.83 : 533,466.71 = 241,405.33 : x
  2. Step 2: Convert to fraction form
    386,378.83/533,466.71 = 241,405.33/x
  3. Step 3: Cross multiply
    386,378.83x = 533,466.71 × 241,405.33
  4. Step 4: Simplify right side
    386,378.83x = 128,781,707,661.68
  5. Step 5: Solve for x
    x = 128,781,707,661.68/386,378.83
  6. Step 6: Final answer
    x = 333,304.26

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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.