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Finding the Fourth Proportional to 364,556.12, 546,830.90 and 115,238.20

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Solution

The fourth proportional to 364,556.12, 546,830.90 and 115,238.20 is: 172,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,556.12 : 546,830.90 = 115,238.20 : x
  2. Step 2: Convert to fraction form
    364,556.12/546,830.90 = 115,238.20/x
  3. Step 3: Cross multiply
    364,556.12x = 546,830.90 × 115,238.20
  4. Step 4: Simplify right side
    364,556.12x = 63,015,808,620.38
  5. Step 5: Solve for x
    x = 63,015,808,620.38/364,556.12
  6. Step 6: Final answer
    x = 172,856.26

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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.