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Finding the Fourth Proportional to 438,167.78, 604,699.54 and 247,111.46

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Solution

The fourth proportional to 438,167.78, 604,699.54 and 247,111.46 is: 341,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,167.78 : 604,699.54 = 247,111.46 : x
  2. Step 2: Convert to fraction form
    438,167.78/604,699.54 = 247,111.46/x
  3. Step 3: Cross multiply
    438,167.78x = 604,699.54 × 247,111.46
  4. Step 4: Simplify right side
    438,167.78x = 149,428,186,190.73
  5. Step 5: Solve for x
    x = 149,428,186,190.73/438,167.78
  6. Step 6: Final answer
    x = 341,029.61

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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.