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Finding the Fourth Proportional to 368,125.01, 507,805.03 and 220,911.77

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Solution

The fourth proportional to 368,125.01, 507,805.03 and 220,911.77 is: 304,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,125.01 : 507,805.03 = 220,911.77 : x
  2. Step 2: Convert to fraction form
    368,125.01/507,805.03 = 220,911.77/x
  3. Step 3: Cross multiply
    368,125.01x = 507,805.03 × 220,911.77
  4. Step 4: Simplify right side
    368,125.01x = 112,180,107,992.20
  5. Step 5: Solve for x
    x = 112,180,107,992.20/368,125.01
  6. Step 6: Final answer
    x = 304,733.73

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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.