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Finding the Fourth Proportional to 451,269.32, 622,392.93 and 383,510.59

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Solution

The fourth proportional to 451,269.32, 622,392.93 and 383,510.59 is: 528,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,269.32 : 622,392.93 = 383,510.59 : x
  2. Step 2: Convert to fraction form
    451,269.32/622,392.93 = 383,510.59/x
  3. Step 3: Cross multiply
    451,269.32x = 622,392.93 × 383,510.59
  4. Step 4: Simplify right side
    451,269.32x = 238,694,278,240.15
  5. Step 5: Solve for x
    x = 238,694,278,240.15/451,269.32
  6. Step 6: Final answer
    x = 528,939.75

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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.