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Finding the Fourth Proportional to 567,596.57, 783,268.58 and 309,478.32

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Solution

The fourth proportional to 567,596.57, 783,268.58 and 309,478.32 is: 427,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,596.57 : 783,268.58 = 309,478.32 : x
  2. Step 2: Convert to fraction form
    567,596.57/783,268.58 = 309,478.32/x
  3. Step 3: Cross multiply
    567,596.57x = 783,268.58 × 309,478.32
  4. Step 4: Simplify right side
    567,596.57x = 242,404,645,020.88
  5. Step 5: Solve for x
    x = 242,404,645,020.88/567,596.57
  6. Step 6: Final answer
    x = 427,072.08

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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.