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Finding the Fourth Proportional to 526,957.57, 727,201.58 and 285,239.40

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Solution

The fourth proportional to 526,957.57, 727,201.58 and 285,239.40 is: 393,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,957.57 : 727,201.58 = 285,239.40 : x
  2. Step 2: Convert to fraction form
    526,957.57/727,201.58 = 285,239.40/x
  3. Step 3: Cross multiply
    526,957.57x = 727,201.58 × 285,239.40
  4. Step 4: Simplify right side
    526,957.57x = 207,426,542,358.25
  5. Step 5: Solve for x
    x = 207,426,542,358.25/526,957.57
  6. Step 6: Final answer
    x = 393,630.44

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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.