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Finding the Fourth Proportional to 547,927.54, 755,650.42 and 343,997.47

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Solution

The fourth proportional to 547,927.54, 755,650.42 and 343,997.47 is: 474,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,927.54 : 755,650.42 = 343,997.47 : x
  2. Step 2: Convert to fraction form
    547,927.54/755,650.42 = 343,997.47/x
  3. Step 3: Cross multiply
    547,927.54x = 755,650.42 × 343,997.47
  4. Step 4: Simplify right side
    547,927.54x = 259,941,828,518.47
  5. Step 5: Solve for x
    x = 259,941,828,518.47/547,927.54
  6. Step 6: Final answer
    x = 474,409.13

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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.