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Finding the Fourth Proportional to 705,593.16, 973,725.48 and 383,305.88

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Solution

The fourth proportional to 705,593.16, 973,725.48 and 383,305.88 is: 528,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,593.16 : 973,725.48 = 383,305.88 : x
  2. Step 2: Convert to fraction form
    705,593.16/973,725.48 = 383,305.88/x
  3. Step 3: Cross multiply
    705,593.16x = 973,725.48 × 383,305.88
  4. Step 4: Simplify right side
    705,593.16x = 373,234,701,989.82
  5. Step 5: Solve for x
    x = 373,234,701,989.82/705,593.16
  6. Step 6: Final answer
    x = 528,965.87

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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.