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Finding the Fourth Proportional to 705,704.60, 973,855.50 and 383,407.40

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Solution

The fourth proportional to 705,704.60, 973,855.50 and 383,407.40 is: 529,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,704.60 : 973,855.50 = 383,407.40 : x
  2. Step 2: Convert to fraction form
    705,704.60/973,855.50 = 383,407.40/x
  3. Step 3: Cross multiply
    705,704.60x = 973,855.50 × 383,407.40
  4. Step 4: Simplify right side
    705,704.60x = 373,383,405,230.70
  5. Step 5: Solve for x
    x = 373,383,405,230.70/705,704.60
  6. Step 6: Final answer
    x = 529,093.06

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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.