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Finding the Fourth Proportional to 455,179.10, 628,359.73 and 264,155.58

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Solution

The fourth proportional to 455,179.10, 628,359.73 and 264,155.58 is: 364,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,179.10 : 628,359.73 = 264,155.58 : x
  2. Step 2: Convert to fraction form
    455,179.10/628,359.73 = 264,155.58/x
  3. Step 3: Cross multiply
    455,179.10x = 628,359.73 × 264,155.58
  4. Step 4: Simplify right side
    455,179.10x = 165,984,728,266.40
  5. Step 5: Solve for x
    x = 165,984,728,266.40/455,179.10
  6. Step 6: Final answer
    x = 364,658.07

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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.