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Finding the Fourth Proportional to 638,832.80, 957,903.60 and 264,893.60

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Solution

The fourth proportional to 638,832.80, 957,903.60 and 264,893.60 is: 397,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,832.80 : 957,903.60 = 264,893.60 : x
  2. Step 2: Convert to fraction form
    638,832.80/957,903.60 = 264,893.60/x
  3. Step 3: Cross multiply
    638,832.80x = 957,903.60 × 264,893.60
  4. Step 4: Simplify right side
    638,832.80x = 253,742,533,056.96
  5. Step 5: Solve for x
    x = 253,742,533,056.96/638,832.80
  6. Step 6: Final answer
    x = 397,197.10

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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.