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Finding the Fourth Proportional to 569,318.69, 785,636.19 and 339,913.32

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Solution

The fourth proportional to 569,318.69, 785,636.19 and 339,913.32 is: 469,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,318.69 : 785,636.19 = 339,913.32 : x
  2. Step 2: Convert to fraction form
    569,318.69/785,636.19 = 339,913.32/x
  3. Step 3: Cross multiply
    569,318.69x = 785,636.19 × 339,913.32
  4. Step 4: Simplify right side
    569,318.69x = 267,048,205,655.05
  5. Step 5: Solve for x
    x = 267,048,205,655.05/569,318.69
  6. Step 6: Final answer
    x = 469,066.29

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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.