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Finding the Fourth Proportional to 403,953.85, 557,453.54 and 222,665.93

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Solution

The fourth proportional to 403,953.85, 557,453.54 and 222,665.93 is: 307,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,953.85 : 557,453.54 = 222,665.93 : x
  2. Step 2: Convert to fraction form
    403,953.85/557,453.54 = 222,665.93/x
  3. Step 3: Cross multiply
    403,953.85x = 557,453.54 × 222,665.93
  4. Step 4: Simplify right side
    403,953.85x = 124,125,910,775.74
  5. Step 5: Solve for x
    x = 124,125,910,775.74/403,953.85
  6. Step 6: Final answer
    x = 307,277.45

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1.5x scale

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.