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Finding the Fourth Proportional to 330,666.64, 456,355.64 and 187,411.30

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Solution

The fourth proportional to 330,666.64, 456,355.64 and 187,411.30 is: 258,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,666.64 : 456,355.64 = 187,411.30 : x
  2. Step 2: Convert to fraction form
    330,666.64/456,355.64 = 187,411.30/x
  3. Step 3: Cross multiply
    330,666.64x = 456,355.64 × 187,411.30
  4. Step 4: Simplify right side
    330,666.64x = 85,526,203,754.73
  5. Step 5: Solve for x
    x = 85,526,203,754.73/330,666.64
  6. Step 6: Final answer
    x = 258,647.81

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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.