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Finding the Fourth Proportional to 438,168.56, 604,674.40 and 236,964.56

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Solution

The fourth proportional to 438,168.56, 604,674.40 and 236,964.56 is: 327,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,168.56 : 604,674.40 = 236,964.56 : x
  2. Step 2: Convert to fraction form
    438,168.56/604,674.40 = 236,964.56/x
  3. Step 3: Cross multiply
    438,168.56x = 604,674.40 × 236,964.56
  4. Step 4: Simplify right side
    438,168.56x = 143,286,403,139.26
  5. Step 5: Solve for x
    x = 143,286,403,139.26/438,168.56
  6. Step 6: Final answer
    x = 327,012.06

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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.