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Finding the Fourth Proportional to 427,921.60, 590,386.44 and 246,627.76

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Solution

The fourth proportional to 427,921.60, 590,386.44 and 246,627.76 is: 340,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,921.60 : 590,386.44 = 246,627.76 : x
  2. Step 2: Convert to fraction form
    427,921.60/590,386.44 = 246,627.76/x
  3. Step 3: Cross multiply
    427,921.60x = 590,386.44 × 246,627.76
  4. Step 4: Simplify right side
    427,921.60x = 145,605,685,231.57
  5. Step 5: Solve for x
    x = 145,605,685,231.57/427,921.60
  6. Step 6: Final answer
    x = 340,262.53

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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.