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Finding the Fourth Proportional to 545,444.78, 752,766.11 and 303,727.28

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Solution

The fourth proportional to 545,444.78, 752,766.11 and 303,727.28 is: 419,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,444.78 : 752,766.11 = 303,727.28 : x
  2. Step 2: Convert to fraction form
    545,444.78/752,766.11 = 303,727.28/x
  3. Step 3: Cross multiply
    545,444.78x = 752,766.11 × 303,727.28
  4. Step 4: Simplify right side
    545,444.78x = 228,635,597,784.01
  5. Step 5: Solve for x
    x = 228,635,597,784.01/545,444.78
  6. Step 6: Final answer
    x = 419,172.77

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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.