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Finding the Fourth Proportional to 705,546.90, 973,659.78 and 383,257.08

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Solution

The fourth proportional to 705,546.90, 973,659.78 and 383,257.08 is: 528,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,546.90 : 973,659.78 = 383,257.08 : x
  2. Step 2: Convert to fraction form
    705,546.90/973,659.78 = 383,257.08/x
  3. Step 3: Cross multiply
    705,546.90x = 973,659.78 × 383,257.08
  4. Step 4: Simplify right side
    705,546.90x = 373,162,004,196.24
  5. Step 5: Solve for x
    x = 373,162,004,196.24/705,546.90
  6. Step 6: Final answer
    x = 528,897.52

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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.