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Finding the Fourth Proportional to 524,957.80, 787,436.70 and 324,628.60

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Solution

The fourth proportional to 524,957.80, 787,436.70 and 324,628.60 is: 486,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,957.80 : 787,436.70 = 324,628.60 : x
  2. Step 2: Convert to fraction form
    524,957.80/787,436.70 = 324,628.60/x
  3. Step 3: Cross multiply
    524,957.80x = 787,436.70 × 324,628.60
  4. Step 4: Simplify right side
    524,957.80x = 255,624,473,509.62
  5. Step 5: Solve for x
    x = 255,624,473,509.62/524,957.80
  6. Step 6: Final answer
    x = 486,942.90

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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.