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Finding the Fourth Proportional to 548,566.64, 757,091.88 and 306,862.64

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Solution

The fourth proportional to 548,566.64, 757,091.88 and 306,862.64 is: 423,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,566.64 : 757,091.88 = 306,862.64 : x
  2. Step 2: Convert to fraction form
    548,566.64/757,091.88 = 306,862.64/x
  3. Step 3: Cross multiply
    548,566.64x = 757,091.88 × 306,862.64
  4. Step 4: Simplify right side
    548,566.64x = 232,323,213,019.36
  5. Step 5: Solve for x
    x = 232,323,213,019.36/548,566.64
  6. Step 6: Final answer
    x = 423,509.55

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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.