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Finding the Fourth Proportional to 547,922.83, 755,643.93 and 343,992.75

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Solution

The fourth proportional to 547,922.83, 755,643.93 and 343,992.75 is: 474,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,922.83 : 755,643.93 = 343,992.75 : x
  2. Step 2: Convert to fraction form
    547,922.83/755,643.93 = 343,992.75/x
  3. Step 3: Cross multiply
    547,922.83x = 755,643.93 × 343,992.75
  4. Step 4: Simplify right side
    547,922.83x = 259,936,033,501.51
  5. Step 5: Solve for x
    x = 259,936,033,501.51/547,922.83
  6. Step 6: Final answer
    x = 474,402.63

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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.