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Finding the Fourth Proportional to 617,579.70, 926,455.95 and 262,590.90

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Solution

The fourth proportional to 617,579.70, 926,455.95 and 262,590.90 is: 393,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,579.70 : 926,455.95 = 262,590.90 : x
  2. Step 2: Convert to fraction form
    617,579.70/926,455.95 = 262,590.90/x
  3. Step 3: Cross multiply
    617,579.70x = 926,455.95 × 262,590.90
  4. Step 4: Simplify right side
    617,579.70x = 243,278,901,720.86
  5. Step 5: Solve for x
    x = 243,278,901,720.86/617,579.70
  6. Step 6: Final answer
    x = 393,923.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.