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Finding the Fourth Proportional to 622,455.60, 933,464.70 and 285,657.60

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Solution

The fourth proportional to 622,455.60, 933,464.70 and 285,657.60 is: 428,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,455.60 : 933,464.70 = 285,657.60 : x
  2. Step 2: Convert to fraction form
    622,455.60/933,464.70 = 285,657.60/x
  3. Step 3: Cross multiply
    622,455.60x = 933,464.70 × 285,657.60
  4. Step 4: Simplify right side
    622,455.60x = 266,651,285,886.72
  5. Step 5: Solve for x
    x = 266,651,285,886.72/622,455.60
  6. Step 6: Final answer
    x = 428,386.03

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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.