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Finding the Fourth Proportional to 654,506.96, 903,201.56 and 368,019.68

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Solution

The fourth proportional to 654,506.96, 903,201.56 and 368,019.68 is: 507,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,506.96 : 903,201.56 = 368,019.68 : x
  2. Step 2: Convert to fraction form
    654,506.96/903,201.56 = 368,019.68/x
  3. Step 3: Cross multiply
    654,506.96x = 903,201.56 × 368,019.68
  4. Step 4: Simplify right side
    654,506.96x = 332,395,949,086.70
  5. Step 5: Solve for x
    x = 332,395,949,086.70/654,506.96
  6. Step 6: Final answer
    x = 507,857.01

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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.