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Finding the Fourth Proportional to 608,775.22, 840,242.22 and 354,159.82

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Solution

The fourth proportional to 608,775.22, 840,242.22 and 354,159.82 is: 488,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,775.22 : 840,242.22 = 354,159.82 : x
  2. Step 2: Convert to fraction form
    608,775.22/840,242.22 = 354,159.82/x
  3. Step 3: Cross multiply
    608,775.22x = 840,242.22 × 354,159.82
  4. Step 4: Simplify right side
    608,775.22x = 297,580,033,391.60
  5. Step 5: Solve for x
    x = 297,580,033,391.60/608,775.22
  6. Step 6: Final answer
    x = 488,817.59

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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.