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Finding the Fourth Proportional to 576,459.40, 863,522.70 and 399,166.60

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Solution

The fourth proportional to 576,459.40, 863,522.70 and 399,166.60 is: 597,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,459.40 : 863,522.70 = 399,166.60 : x
  2. Step 2: Convert to fraction form
    576,459.40/863,522.70 = 399,166.60/x
  3. Step 3: Cross multiply
    576,459.40x = 863,522.70 × 399,166.60
  4. Step 4: Simplify right side
    576,459.40x = 344,689,420,181.82
  5. Step 5: Solve for x
    x = 344,689,420,181.82/576,459.40
  6. Step 6: Final answer
    x = 597,942.23

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1.5x scale

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.