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Finding the Fourth Proportional to 472,080.55, 708,416.08 and 191,597.80

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Solution

The fourth proportional to 472,080.55, 708,416.08 and 191,597.80 is: 287,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,080.55 : 708,416.08 = 191,597.80 : x
  2. Step 2: Convert to fraction form
    472,080.55/708,416.08 = 191,597.80/x
  3. Step 3: Cross multiply
    472,080.55x = 708,416.08 × 191,597.80
  4. Step 4: Simplify right side
    472,080.55x = 135,730,962,412.62
  5. Step 5: Solve for x
    x = 135,730,962,412.62/472,080.55
  6. Step 6: Final answer
    x = 287,516.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.