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Finding the Fourth Proportional to 438,195.50, 604,709.79 and 236,991.50

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Solution

The fourth proportional to 438,195.50, 604,709.79 and 236,991.50 is: 327,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,195.50 : 604,709.79 = 236,991.50 : x
  2. Step 2: Convert to fraction form
    438,195.50/604,709.79 = 236,991.50/x
  3. Step 3: Cross multiply
    438,195.50x = 604,709.79 × 236,991.50
  4. Step 4: Simplify right side
    438,195.50x = 143,311,080,196.79
  5. Step 5: Solve for x
    x = 143,311,080,196.79/438,195.50
  6. Step 6: Final answer
    x = 327,048.27

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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.