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Finding the Fourth Proportional to 705,690.65, 973,847.84 and 383,403.39

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Solution

The fourth proportional to 705,690.65, 973,847.84 and 383,403.39 is: 529,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,690.65 : 973,847.84 = 383,403.39 : x
  2. Step 2: Convert to fraction form
    705,690.65/973,847.84 = 383,403.39/x
  3. Step 3: Cross multiply
    705,690.65x = 973,847.84 × 383,403.39
  4. Step 4: Simplify right side
    705,690.65x = 373,376,561,283.16
  5. Step 5: Solve for x
    x = 373,376,561,283.16/705,690.65
  6. Step 6: Final answer
    x = 529,093.82

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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.