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Finding the Fourth Proportional to 330,000.81, 455,401.12 and 179,097.81

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Solution

The fourth proportional to 330,000.81, 455,401.12 and 179,097.81 is: 247,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,000.81 : 455,401.12 = 179,097.81 : x
  2. Step 2: Convert to fraction form
    330,000.81/455,401.12 = 179,097.81/x
  3. Step 3: Cross multiply
    330,000.81x = 455,401.12 × 179,097.81
  4. Step 4: Simplify right side
    330,000.81x = 81,561,343,263.55
  5. Step 5: Solve for x
    x = 81,561,343,263.55/330,000.81
  6. Step 6: Final answer
    x = 247,154.98

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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.