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Finding the Fourth Proportional to 534,649.35, 737,787.89 and 305,197.51

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Solution

The fourth proportional to 534,649.35, 737,787.89 and 305,197.51 is: 421,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,649.35 : 737,787.89 = 305,197.51 : x
  2. Step 2: Convert to fraction form
    534,649.35/737,787.89 = 305,197.51/x
  3. Step 3: Cross multiply
    534,649.35x = 737,787.89 × 305,197.51
  4. Step 4: Simplify right side
    534,649.35x = 225,171,024,269.19
  5. Step 5: Solve for x
    x = 225,171,024,269.19/534,649.35
  6. Step 6: Final answer
    x = 421,156.46

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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.