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Finding the Fourth Proportional to 472,244.40, 708,366.60 and 191,962.80

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Solution

The fourth proportional to 472,244.40, 708,366.60 and 191,962.80 is: 287,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,244.40 : 708,366.60 = 191,962.80 : x
  2. Step 2: Convert to fraction form
    472,244.40/708,366.60 = 191,962.80/x
  3. Step 3: Cross multiply
    472,244.40x = 708,366.60 × 191,962.80
  4. Step 4: Simplify right side
    472,244.40x = 135,980,035,962.48
  5. Step 5: Solve for x
    x = 135,980,035,962.48/472,244.40
  6. Step 6: Final answer
    x = 287,944.20

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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.