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Finding the Fourth Proportional to 705,469.92, 973,555.62 and 383,186.30

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Solution

The fourth proportional to 705,469.92, 973,555.62 and 383,186.30 is: 528,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,469.92 : 973,555.62 = 383,186.30 : x
  2. Step 2: Convert to fraction form
    705,469.92/973,555.62 = 383,186.30/x
  3. Step 3: Cross multiply
    705,469.92x = 973,555.62 × 383,186.30
  4. Step 4: Simplify right side
    705,469.92x = 373,053,175,872.01
  5. Step 5: Solve for x
    x = 373,053,175,872.01/705,469.92
  6. Step 6: Final answer
    x = 528,800.97

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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.