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Finding the Fourth Proportional to 298,754.95, 412,276.62 and 162,790.03

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Solution

The fourth proportional to 298,754.95, 412,276.62 and 162,790.03 is: 224,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,754.95 : 412,276.62 = 162,790.03 : x
  2. Step 2: Convert to fraction form
    298,754.95/412,276.62 = 162,790.03/x
  3. Step 3: Cross multiply
    298,754.95x = 412,276.62 × 162,790.03
  4. Step 4: Simplify right side
    298,754.95x = 67,114,523,338.10
  5. Step 5: Solve for x
    x = 67,114,523,338.10/298,754.95
  6. Step 6: Final answer
    x = 224,647.40

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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.