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Finding the Fourth Proportional to 554,272.12, 764,385.42 and 363,216.12

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Solution

The fourth proportional to 554,272.12, 764,385.42 and 363,216.12 is: 500,903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,272.12 : 764,385.42 = 363,216.12 : x
  2. Step 2: Convert to fraction form
    554,272.12/764,385.42 = 363,216.12/x
  3. Step 3: Cross multiply
    554,272.12x = 764,385.42 × 363,216.12
  4. Step 4: Simplify right side
    554,272.12x = 277,637,106,436.97
  5. Step 5: Solve for x
    x = 277,637,106,436.97/554,272.12
  6. Step 6: Final answer
    x = 500,903.97

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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.