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Finding the Fourth Proportional to 524,410.20, 786,615.30 and 169,435.80

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Solution

The fourth proportional to 524,410.20, 786,615.30 and 169,435.80 is: 254,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,410.20 : 786,615.30 = 169,435.80 : x
  2. Step 2: Convert to fraction form
    524,410.20/786,615.30 = 169,435.80/x
  3. Step 3: Cross multiply
    524,410.20x = 786,615.30 × 169,435.80
  4. Step 4: Simplify right side
    524,410.20x = 133,280,792,647.74
  5. Step 5: Solve for x
    x = 133,280,792,647.74/524,410.20
  6. Step 6: Final answer
    x = 254,153.70

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Similar ratio
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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.