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Finding the Fourth Proportional to 624,928.97, 862,455.08 and 353,046.77

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Solution

The fourth proportional to 624,928.97, 862,455.08 and 353,046.77 is: 487,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,928.97 : 862,455.08 = 353,046.77 : x
  2. Step 2: Convert to fraction form
    624,928.97/862,455.08 = 353,046.77/x
  3. Step 3: Cross multiply
    624,928.97x = 862,455.08 × 353,046.77
  4. Step 4: Simplify right side
    624,928.97x = 304,486,980,264.09
  5. Step 5: Solve for x
    x = 304,486,980,264.09/624,928.97
  6. Step 6: Final answer
    x = 487,234.54

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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.