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Finding the Fourth Proportional to 364,553.55, 503,129.34 and 211,558.89

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Solution

The fourth proportional to 364,553.55, 503,129.34 and 211,558.89 is: 291,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,553.55 : 503,129.34 = 211,558.89 : x
  2. Step 2: Convert to fraction form
    364,553.55/503,129.34 = 211,558.89/x
  3. Step 3: Cross multiply
    364,553.55x = 503,129.34 × 211,558.89
  4. Step 4: Simplify right side
    364,553.55x = 106,441,484,696.83
  5. Step 5: Solve for x
    x = 106,441,484,696.83/364,553.55
  6. Step 6: Final answer
    x = 291,977.64

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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.