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Finding the Fourth Proportional to 366,801.20, 513,871.60 and 366,801.20

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Solution

The fourth proportional to 366,801.20, 513,871.60 and 366,801.20 is: 513,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,801.20 : 513,871.60 = 366,801.20 : x
  2. Step 2: Convert to fraction form
    366,801.20/513,871.60 = 366,801.20/x
  3. Step 3: Cross multiply
    366,801.20x = 513,871.60 × 366,801.20
  4. Step 4: Simplify right side
    366,801.20x = 188,488,719,525.92
  5. Step 5: Solve for x
    x = 188,488,719,525.92/366,801.20
  6. Step 6: Final answer
    x = 513,871.60

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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.