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Finding the Fourth Proportional to 569,968.74, 786,513.51 and 315,314.46

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Solution

The fourth proportional to 569,968.74, 786,513.51 and 315,314.46 is: 435,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,968.74 : 786,513.51 = 315,314.46 : x
  2. Step 2: Convert to fraction form
    569,968.74/786,513.51 = 315,314.46/x
  3. Step 3: Cross multiply
    569,968.74x = 786,513.51 × 315,314.46
  4. Step 4: Simplify right side
    569,968.74x = 247,999,082,688.36
  5. Step 5: Solve for x
    x = 247,999,082,688.36/569,968.74
  6. Step 6: Final answer
    x = 435,109.97

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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.