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Finding the Fourth Proportional to 572,395.54, 858,738.30 and 404,244.40

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Solution

The fourth proportional to 572,395.54, 858,738.30 and 404,244.40 is: 606,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,395.54 : 858,738.30 = 404,244.40 : x
  2. Step 2: Convert to fraction form
    572,395.54/858,738.30 = 404,244.40/x
  3. Step 3: Cross multiply
    572,395.54x = 858,738.30 × 404,244.40
  4. Step 4: Simplify right side
    572,395.54x = 347,140,148,840.52
  5. Step 5: Solve for x
    x = 347,140,148,840.52/572,395.54
  6. Step 6: Final answer
    x = 606,469.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.