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Finding the Fourth Proportional to 298,172.24, 447,162.98 and 98,455.40

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Solution

The fourth proportional to 298,172.24, 447,162.98 and 98,455.40 is: 147,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,172.24 : 447,162.98 = 98,455.40 : x
  2. Step 2: Convert to fraction form
    298,172.24/447,162.98 = 98,455.40/x
  3. Step 3: Cross multiply
    298,172.24x = 447,162.98 × 98,455.40
  4. Step 4: Simplify right side
    298,172.24x = 44,025,609,563.67
  5. Step 5: Solve for x
    x = 44,025,609,563.67/298,172.24
  6. Step 6: Final answer
    x = 147,651.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.