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Finding the Fourth Proportional to 363,342.23, 501,358.98 and 218,117.22

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Solution

The fourth proportional to 363,342.23, 501,358.98 and 218,117.22 is: 300,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,342.23 : 501,358.98 = 218,117.22 : x
  2. Step 2: Convert to fraction form
    363,342.23/501,358.98 = 218,117.22/x
  3. Step 3: Cross multiply
    363,342.23x = 501,358.98 × 218,117.22
  4. Step 4: Simplify right side
    363,342.23x = 109,355,026,939.64
  5. Step 5: Solve for x
    x = 109,355,026,939.64/363,342.23
  6. Step 6: Final answer
    x = 300,969.77

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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.