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Finding the Fourth Proportional to 619,573.60, 927,027.60 and 409,621.60

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Solution

The fourth proportional to 619,573.60, 927,027.60 and 409,621.60 is: 612,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,573.60 : 927,027.60 = 409,621.60 : x
  2. Step 2: Convert to fraction form
    619,573.60/927,027.60 = 409,621.60/x
  3. Step 3: Cross multiply
    619,573.60x = 927,027.60 × 409,621.60
  4. Step 4: Simplify right side
    619,573.60x = 379,730,528,756.16
  5. Step 5: Solve for x
    x = 379,730,528,756.16/619,573.60
  6. Step 6: Final answer
    x = 612,890.10

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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.