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Finding the Fourth Proportional to 556,784.80, 768,380.08 and 327,299.98

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Solution

The fourth proportional to 556,784.80, 768,380.08 and 327,299.98 is: 451,684.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,784.80 : 768,380.08 = 327,299.98 : x
  2. Step 2: Convert to fraction form
    556,784.80/768,380.08 = 327,299.98/x
  3. Step 3: Cross multiply
    556,784.80x = 768,380.08 × 327,299.98
  4. Step 4: Simplify right side
    556,784.80x = 251,490,784,816.40
  5. Step 5: Solve for x
    x = 251,490,784,816.40/556,784.80
  6. Step 6: Final answer
    x = 451,684.00

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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.