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Finding the Fourth Proportional to 386,405.57, 532,890.63 and 241,224.76

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Solution

The fourth proportional to 386,405.57, 532,890.63 and 241,224.76 is: 332,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,405.57 : 532,890.63 = 241,224.76 : x
  2. Step 2: Convert to fraction form
    386,405.57/532,890.63 = 241,224.76/x
  3. Step 3: Cross multiply
    386,405.57x = 532,890.63 × 241,224.76
  4. Step 4: Simplify right side
    386,405.57x = 128,546,413,495.36
  5. Step 5: Solve for x
    x = 128,546,413,495.36/386,405.57
  6. Step 6: Final answer
    x = 332,672.26

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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.