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Finding the Fourth Proportional to 402,458.60, 604,076.70 and 244,994.60

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Solution

The fourth proportional to 402,458.60, 604,076.70 and 244,994.60 is: 367,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,458.60 : 604,076.70 = 244,994.60 : x
  2. Step 2: Convert to fraction form
    402,458.60/604,076.70 = 244,994.60/x
  3. Step 3: Cross multiply
    402,458.60x = 604,076.70 × 244,994.60
  4. Step 4: Simplify right side
    402,458.60x = 147,995,529,485.82
  5. Step 5: Solve for x
    x = 147,995,529,485.82/402,458.60
  6. Step 6: Final answer
    x = 367,728.58

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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.