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Finding the Fourth Proportional to 579,963.40, 868,562.70 and 356,014.60

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Solution

The fourth proportional to 579,963.40, 868,562.70 and 356,014.60 is: 533,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,963.40 : 868,562.70 = 356,014.60 : x
  2. Step 2: Convert to fraction form
    579,963.40/868,562.70 = 356,014.60/x
  3. Step 3: Cross multiply
    579,963.40x = 868,562.70 × 356,014.60
  4. Step 4: Simplify right side
    579,963.40x = 309,221,002,215.42
  5. Step 5: Solve for x
    x = 309,221,002,215.42/579,963.40
  6. Step 6: Final answer
    x = 533,173.30

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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.