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Finding the Fourth Proportional to 438,403.44, 604,931.86 and 266,231.86

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Solution

The fourth proportional to 438,403.44, 604,931.86 and 266,231.86 is: 367,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,403.44 : 604,931.86 = 266,231.86 : x
  2. Step 2: Convert to fraction form
    438,403.44/604,931.86 = 266,231.86/x
  3. Step 3: Cross multiply
    438,403.44x = 604,931.86 × 266,231.86
  4. Step 4: Simplify right side
    438,403.44x = 161,052,134,261.06
  5. Step 5: Solve for x
    x = 161,052,134,261.06/438,403.44
  6. Step 6: Final answer
    x = 367,360.56

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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.