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Finding the Fourth Proportional to 520,451.73, 717,827.04 and 447,977.88

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Solution

The fourth proportional to 520,451.73, 717,827.04 and 447,977.88 is: 617,868.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,451.73 : 717,827.04 = 447,977.88 : x
  2. Step 2: Convert to fraction form
    520,451.73/717,827.04 = 447,977.88/x
  3. Step 3: Cross multiply
    520,451.73x = 717,827.04 × 447,977.88
  4. Step 4: Simplify right side
    520,451.73x = 321,570,635,585.88
  5. Step 5: Solve for x
    x = 321,570,635,585.88/520,451.73
  6. Step 6: Final answer
    x = 617,868.32

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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.