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Finding the Fourth Proportional to 636,969.68, 878,917.77 and 364,985.27

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Solution

The fourth proportional to 636,969.68, 878,917.77 and 364,985.27 is: 503,622.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,969.68 : 878,917.77 = 364,985.27 : x
  2. Step 2: Convert to fraction form
    636,969.68/878,917.77 = 364,985.27/x
  3. Step 3: Cross multiply
    636,969.68x = 878,917.77 × 364,985.27
  4. Step 4: Simplify right side
    636,969.68x = 320,792,035,196.66
  5. Step 5: Solve for x
    x = 320,792,035,196.66/636,969.68
  6. Step 6: Final answer
    x = 503,622.15

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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.