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Finding the Fourth Proportional to 705,904.90, 974,135.96 and 383,616.12

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Solution

The fourth proportional to 705,904.90, 974,135.96 and 383,616.12 is: 529,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,904.90 : 974,135.96 = 383,616.12 : x
  2. Step 2: Convert to fraction form
    705,904.90/974,135.96 = 383,616.12/x
  3. Step 3: Cross multiply
    705,904.90x = 974,135.96 × 383,616.12
  4. Step 4: Simplify right side
    705,904.90x = 373,694,257,327.68
  5. Step 5: Solve for x
    x = 373,694,257,327.68/705,904.90
  6. Step 6: Final answer
    x = 529,383.29

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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.