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Finding the Fourth Proportional to 438,427.70, 604,969.52 and 244,811.78

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Solution

The fourth proportional to 438,427.70, 604,969.52 and 244,811.78 is: 337,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,427.70 : 604,969.52 = 244,811.78 : x
  2. Step 2: Convert to fraction form
    438,427.70/604,969.52 = 244,811.78/x
  3. Step 3: Cross multiply
    438,427.70x = 604,969.52 × 244,811.78
  4. Step 4: Simplify right side
    438,427.70x = 148,103,665,036.95
  5. Step 5: Solve for x
    x = 148,103,665,036.95/438,427.70
  6. Step 6: Final answer
    x = 337,806.36

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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.