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Finding the Fourth Proportional to 449,244.16, 619,957.12 and 248,040.32

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Solution

The fourth proportional to 449,244.16, 619,957.12 and 248,040.32 is: 342,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,244.16 : 619,957.12 = 248,040.32 : x
  2. Step 2: Convert to fraction form
    449,244.16/619,957.12 = 248,040.32/x
  3. Step 3: Cross multiply
    449,244.16x = 619,957.12 × 248,040.32
  4. Step 4: Simplify right side
    449,244.16x = 153,774,362,431.08
  5. Step 5: Solve for x
    x = 153,774,362,431.08/449,244.16
  6. Step 6: Final answer
    x = 342,295.74

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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.