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Finding the Fourth Proportional to 366,823.20, 512,930.40 and 366,823.20

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Solution

The fourth proportional to 366,823.20, 512,930.40 and 366,823.20 is: 512,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,823.20 : 512,930.40 = 366,823.20 : x
  2. Step 2: Convert to fraction form
    366,823.20/512,930.40 = 366,823.20/x
  3. Step 3: Cross multiply
    366,823.20x = 512,930.40 × 366,823.20
  4. Step 4: Simplify right side
    366,823.20x = 188,154,770,705.28
  5. Step 5: Solve for x
    x = 188,154,770,705.28/366,823.20
  6. Step 6: Final answer
    x = 512,930.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.