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Finding the Fourth Proportional to 356,239.77, 534,394.76 and 103,522.47

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Solution

The fourth proportional to 356,239.77, 534,394.76 and 103,522.47 is: 155,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,239.77 : 534,394.76 = 103,522.47 : x
  2. Step 2: Convert to fraction form
    356,239.77/534,394.76 = 103,522.47/x
  3. Step 3: Cross multiply
    356,239.77x = 534,394.76 × 103,522.47
  4. Step 4: Simplify right side
    356,239.77x = 55,321,864,992.64
  5. Step 5: Solve for x
    x = 55,321,864,992.64/356,239.77
  6. Step 6: Final answer
    x = 155,293.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.