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Finding the Fourth Proportional to 705,992.86, 974,276.55 and 383,703.73

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Solution

The fourth proportional to 705,992.86, 974,276.55 and 383,703.73 is: 529,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,992.86 : 974,276.55 = 383,703.73 : x
  2. Step 2: Convert to fraction form
    705,992.86/974,276.55 = 383,703.73/x
  3. Step 3: Cross multiply
    705,992.86x = 974,276.55 × 383,703.73
  4. Step 4: Simplify right side
    705,992.86x = 373,833,546,286.53
  5. Step 5: Solve for x
    x = 373,833,546,286.53/705,992.86
  6. Step 6: Final answer
    x = 529,514.63

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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.