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Finding the Fourth Proportional to 624,166.32, 862,231.32 and 496,678.80

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Solution

The fourth proportional to 624,166.32, 862,231.32 and 496,678.80 is: 686,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,166.32 : 862,231.32 = 496,678.80 : x
  2. Step 2: Convert to fraction form
    624,166.32/862,231.32 = 496,678.80/x
  3. Step 3: Cross multiply
    624,166.32x = 862,231.32 × 496,678.80
  4. Step 4: Simplify right side
    624,166.32x = 428,252,017,340.02
  5. Step 5: Solve for x
    x = 428,252,017,340.02/624,166.32
  6. Step 6: Final answer
    x = 686,118.43

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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.