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Finding the Fourth Proportional to 545,858.17, 753,287.36 and 316,551.60

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Solution

The fourth proportional to 545,858.17, 753,287.36 and 316,551.60 is: 436,843.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,858.17 : 753,287.36 = 316,551.60 : x
  2. Step 2: Convert to fraction form
    545,858.17/753,287.36 = 316,551.60/x
  3. Step 3: Cross multiply
    545,858.17x = 753,287.36 × 316,551.60
  4. Step 4: Simplify right side
    545,858.17x = 238,454,319,067.78
  5. Step 5: Solve for x
    x = 238,454,319,067.78/545,858.17
  6. Step 6: Final answer
    x = 436,843.00

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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.