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Finding the Fourth Proportional to 705,979.86, 974,252.22 and 383,690.70

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Solution

The fourth proportional to 705,979.86, 974,252.22 and 383,690.70 is: 529,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,979.86 : 974,252.22 = 383,690.70 : x
  2. Step 2: Convert to fraction form
    705,979.86/974,252.22 = 383,690.70/x
  3. Step 3: Cross multiply
    705,979.86x = 974,252.22 × 383,690.70
  4. Step 4: Simplify right side
    705,979.86x = 373,811,516,268.35
  5. Step 5: Solve for x
    x = 373,811,516,268.35/705,979.86
  6. Step 6: Final answer
    x = 529,493.17

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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.