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Finding the Fourth Proportional to 624,170.82, 862,237.53 and 496,683.30

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Solution

The fourth proportional to 624,170.82, 862,237.53 and 496,683.30 is: 686,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,170.82 : 862,237.53 = 496,683.30 : x
  2. Step 2: Convert to fraction form
    624,170.82/862,237.53 = 496,683.30/x
  3. Step 3: Cross multiply
    624,170.82x = 862,237.53 × 496,683.30
  4. Step 4: Simplify right side
    624,170.82x = 428,258,981,784.25
  5. Step 5: Solve for x
    x = 428,258,981,784.25/624,170.82
  6. Step 6: Final answer
    x = 686,124.64

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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.