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Finding the Fourth Proportional to 297,740.68, 410,877.16 and 161,776.71

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Solution

The fourth proportional to 297,740.68, 410,877.16 and 161,776.71 is: 223,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,740.68 : 410,877.16 = 161,776.71 : x
  2. Step 2: Convert to fraction form
    297,740.68/410,877.16 = 161,776.71/x
  3. Step 3: Cross multiply
    297,740.68x = 410,877.16 × 161,776.71
  4. Step 4: Simplify right side
    297,740.68x = 66,470,354,754.50
  5. Step 5: Solve for x
    x = 66,470,354,754.50/297,740.68
  6. Step 6: Final answer
    x = 223,249.16

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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.