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Finding the Fourth Proportional to 368,394.76, 508,355.62 and 207,217.72

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Solution

The fourth proportional to 368,394.76, 508,355.62 and 207,217.72 is: 285,944.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,394.76 : 508,355.62 = 207,217.72 : x
  2. Step 2: Convert to fraction form
    368,394.76/508,355.62 = 207,217.72/x
  3. Step 3: Cross multiply
    368,394.76x = 508,355.62 × 207,217.72
  4. Step 4: Simplify right side
    368,394.76x = 105,340,292,525.59
  5. Step 5: Solve for x
    x = 105,340,292,525.59/368,394.76
  6. Step 6: Final answer
    x = 285,944.06

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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.