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Finding the Fourth Proportional to 352,678.50, 486,696.21 and 191,533.59

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Solution

The fourth proportional to 352,678.50, 486,696.21 and 191,533.59 is: 264,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,678.50 : 486,696.21 = 191,533.59 : x
  2. Step 2: Convert to fraction form
    352,678.50/486,696.21 = 191,533.59/x
  3. Step 3: Cross multiply
    352,678.50x = 486,696.21 × 191,533.59
  4. Step 4: Simplify right side
    352,678.50x = 93,218,672,340.69
  5. Step 5: Solve for x
    x = 93,218,672,340.69/352,678.50
  6. Step 6: Final answer
    x = 264,316.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.