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Finding the Fourth Proportional to 543,712.20, 750,020.22 and 505,224.24

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Solution

The fourth proportional to 543,712.20, 750,020.22 and 505,224.24 is: 696,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,712.20 : 750,020.22 = 505,224.24 : x
  2. Step 2: Convert to fraction form
    543,712.20/750,020.22 = 505,224.24/x
  3. Step 3: Cross multiply
    543,712.20x = 750,020.22 × 505,224.24
  4. Step 4: Simplify right side
    543,712.20x = 378,928,395,634.13
  5. Step 5: Solve for x
    x = 378,928,395,634.13/543,712.20
  6. Step 6: Final answer
    x = 696,928.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.