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Finding the Fourth Proportional to 403,648.68, 557,028.18 and 233,898.60

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Solution

The fourth proportional to 403,648.68, 557,028.18 and 233,898.60 is: 322,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,648.68 : 557,028.18 = 233,898.60 : x
  2. Step 2: Convert to fraction form
    403,648.68/557,028.18 = 233,898.60/x
  3. Step 3: Cross multiply
    403,648.68x = 557,028.18 × 233,898.60
  4. Step 4: Simplify right side
    403,648.68x = 130,288,111,462.55
  5. Step 5: Solve for x
    x = 130,288,111,462.55/403,648.68
  6. Step 6: Final answer
    x = 322,776.01

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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.