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Finding the Fourth Proportional to 636,933.60, 878,992.56 and 365,053.94

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Solution

The fourth proportional to 636,933.60, 878,992.56 and 365,053.94 is: 503,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,933.60 : 878,992.56 = 365,053.94 : x
  2. Step 2: Convert to fraction form
    636,933.60/878,992.56 = 365,053.94/x
  3. Step 3: Cross multiply
    636,933.60x = 878,992.56 × 365,053.94
  4. Step 4: Simplify right side
    636,933.60x = 320,879,697,258.69
  5. Step 5: Solve for x
    x = 320,879,697,258.69/636,933.60
  6. Step 6: Final answer
    x = 503,788.30

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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.