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Finding the Fourth Proportional to 436,686.24, 654,999.84 and 170,397.12

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Solution

The fourth proportional to 436,686.24, 654,999.84 and 170,397.12 is: 255,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,686.24 : 654,999.84 = 170,397.12 : x
  2. Step 2: Convert to fraction form
    436,686.24/654,999.84 = 170,397.12/x
  3. Step 3: Cross multiply
    436,686.24x = 654,999.84 × 170,397.12
  4. Step 4: Simplify right side
    436,686.24x = 111,610,086,336.46
  5. Step 5: Solve for x
    x = 111,610,086,336.46/436,686.24
  6. Step 6: Final answer
    x = 255,584.16

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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.