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Finding the Fourth Proportional to 524,283.20, 787,016.10 and 347,136.20

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Solution

The fourth proportional to 524,283.20, 787,016.10 and 347,136.20 is: 521,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,283.20 : 787,016.10 = 347,136.20 : x
  2. Step 2: Convert to fraction form
    524,283.20/787,016.10 = 347,136.20/x
  3. Step 3: Cross multiply
    524,283.20x = 787,016.10 × 347,136.20
  4. Step 4: Simplify right side
    524,283.20x = 273,201,778,292.82
  5. Step 5: Solve for x
    x = 273,201,778,292.82/524,283.20
  6. Step 6: Final answer
    x = 521,095.81

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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.