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Finding the Fourth Proportional to 330,343.70, 455,862.12 and 179,437.46

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Solution

The fourth proportional to 330,343.70, 455,862.12 and 179,437.46 is: 247,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,343.70 : 455,862.12 = 179,437.46 : x
  2. Step 2: Convert to fraction form
    330,343.70/455,862.12 = 179,437.46/x
  3. Step 3: Cross multiply
    330,343.70x = 455,862.12 × 179,437.46
  4. Step 4: Simplify right side
    330,343.70x = 81,798,738,643.70
  5. Step 5: Solve for x
    x = 81,798,738,643.70/330,343.70
  6. Step 6: Final answer
    x = 247,617.07

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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.