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Finding the Fourth Proportional to 705,760.60, 973,932.78 and 383,463.40

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Solution

The fourth proportional to 705,760.60, 973,932.78 and 383,463.40 is: 529,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,760.60 : 973,932.78 = 383,463.40 : x
  2. Step 2: Convert to fraction form
    705,760.60/973,932.78 = 383,463.40/x
  3. Step 3: Cross multiply
    705,760.60x = 973,932.78 × 383,463.40
  4. Step 4: Simplify right side
    705,760.60x = 373,467,575,190.25
  5. Step 5: Solve for x
    x = 373,467,575,190.25/705,760.60
  6. Step 6: Final answer
    x = 529,170.34

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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.