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Finding the Fourth Proportional to 368,150.66, 507,840.32 and 220,937.88

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Solution

The fourth proportional to 368,150.66, 507,840.32 and 220,937.88 is: 304,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,150.66 : 507,840.32 = 220,937.88 : x
  2. Step 2: Convert to fraction form
    368,150.66/507,840.32 = 220,937.88/x
  3. Step 3: Cross multiply
    368,150.66x = 507,840.32 × 220,937.88
  4. Step 4: Simplify right side
    368,150.66x = 112,201,163,679.32
  5. Step 5: Solve for x
    x = 112,201,163,679.32/368,150.66
  6. Step 6: Final answer
    x = 304,769.69

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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.