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Finding the Fourth Proportional to 567,964.50, 783,805.74 and 309,845.64

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Solution

The fourth proportional to 567,964.50, 783,805.74 and 309,845.64 is: 427,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,964.50 : 783,805.74 = 309,845.64 : x
  2. Step 2: Convert to fraction form
    567,964.50/783,805.74 = 309,845.64/x
  3. Step 3: Cross multiply
    567,964.50x = 783,805.74 × 309,845.64
  4. Step 4: Simplify right side
    567,964.50x = 242,858,791,145.97
  5. Step 5: Solve for x
    x = 242,858,791,145.97/567,964.50
  6. Step 6: Final answer
    x = 427,595.02

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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.