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Finding the Fourth Proportional to 705,759.68, 973,936.56 and 383,474.72

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Solution

The fourth proportional to 705,759.68, 973,936.56 and 383,474.72 is: 529,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,759.68 : 973,936.56 = 383,474.72 : x
  2. Step 2: Convert to fraction form
    705,759.68/973,936.56 = 383,474.72/x
  3. Step 3: Cross multiply
    705,759.68x = 973,936.56 × 383,474.72
  4. Step 4: Simplify right side
    705,759.68x = 373,480,049,643.76
  5. Step 5: Solve for x
    x = 373,480,049,643.76/705,759.68
  6. Step 6: Final answer
    x = 529,188.70

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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.