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Finding the Fourth Proportional to 638,577.60, 957,789.60 and 264,561.60

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Solution

The fourth proportional to 638,577.60, 957,789.60 and 264,561.60 is: 396,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,577.60 : 957,789.60 = 264,561.60 : x
  2. Step 2: Convert to fraction form
    638,577.60/957,789.60 = 264,561.60/x
  3. Step 3: Cross multiply
    638,577.60x = 957,789.60 × 264,561.60
  4. Step 4: Simplify right side
    638,577.60x = 253,394,349,039.36
  5. Step 5: Solve for x
    x = 253,394,349,039.36/638,577.60
  6. Step 6: Final answer
    x = 396,810.58

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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.