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Finding the Fourth Proportional to 522,133.60, 783,201 and 143,057.56

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Solution

The fourth proportional to 522,133.60, 783,201 and 143,057.56 is: 214,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,133.60 : 783,201 = 143,057.56 : x
  2. Step 2: Convert to fraction form
    522,133.60/783,201 = 143,057.56/x
  3. Step 3: Cross multiply
    522,133.60x = 783,201 × 143,057.56
  4. Step 4: Simplify right side
    522,133.60x = 112,042,824,049.56
  5. Step 5: Solve for x
    x = 112,042,824,049.56/522,133.60
  6. Step 6: Final answer
    x = 214,586.50

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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.