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Finding the Fourth Proportional to 526,801.32, 726,985.79 and 285,083.86

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Solution

The fourth proportional to 526,801.32, 726,985.79 and 285,083.86 is: 393,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,801.32 : 726,985.79 = 285,083.86 : x
  2. Step 2: Convert to fraction form
    526,801.32/726,985.79 = 285,083.86/x
  3. Step 3: Cross multiply
    526,801.32x = 726,985.79 × 285,083.86
  4. Step 4: Simplify right side
    526,801.32x = 207,251,915,178.35
  5. Step 5: Solve for x
    x = 207,251,915,178.35/526,801.32
  6. Step 6: Final answer
    x = 393,415.71

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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.