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Finding the Fourth Proportional to 547,268.04, 755,222.55 and 305,554.32

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Solution

The fourth proportional to 547,268.04, 755,222.55 and 305,554.32 is: 421,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,268.04 : 755,222.55 = 305,554.32 : x
  2. Step 2: Convert to fraction form
    547,268.04/755,222.55 = 305,554.32/x
  3. Step 3: Cross multiply
    547,268.04x = 755,222.55 × 305,554.32
  4. Step 4: Simplify right side
    547,268.04x = 230,761,512,713.92
  5. Step 5: Solve for x
    x = 230,761,512,713.92/547,268.04
  6. Step 6: Final answer
    x = 421,660.86

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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.