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Finding the Fourth Proportional to 318,140.92, 476,172.96 and 233,878.78

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Solution

The fourth proportional to 318,140.92, 476,172.96 and 233,878.78 is: 350,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,140.92 : 476,172.96 = 233,878.78 : x
  2. Step 2: Convert to fraction form
    318,140.92/476,172.96 = 233,878.78/x
  3. Step 3: Cross multiply
    318,140.92x = 476,172.96 × 233,878.78
  4. Step 4: Simplify right side
    318,140.92x = 111,366,750,953.79
  5. Step 5: Solve for x
    x = 111,366,750,953.79/318,140.92
  6. Step 6: Final answer
    x = 350,054.78

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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.