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Finding the Fourth Proportional to 348,331.25, 522,059.74 and 188,400.80

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Solution

The fourth proportional to 348,331.25, 522,059.74 and 188,400.80 is: 282,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,331.25 : 522,059.74 = 188,400.80 : x
  2. Step 2: Convert to fraction form
    348,331.25/522,059.74 = 188,400.80/x
  3. Step 3: Cross multiply
    348,331.25x = 522,059.74 × 188,400.80
  4. Step 4: Simplify right side
    348,331.25x = 98,356,472,663.79
  5. Step 5: Solve for x
    x = 98,356,472,663.79/348,331.25
  6. Step 6: Final answer
    x = 282,364.77

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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.