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Finding the Fourth Proportional to 569,889.14, 786,448.62 and 315,240.33

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Solution

The fourth proportional to 569,889.14, 786,448.62 and 315,240.33 is: 435,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,889.14 : 786,448.62 = 315,240.33 : x
  2. Step 2: Convert to fraction form
    569,889.14/786,448.62 = 315,240.33/x
  3. Step 3: Cross multiply
    569,889.14x = 786,448.62 × 315,240.33
  4. Step 4: Simplify right side
    569,889.14x = 247,920,322,347.53
  5. Step 5: Solve for x
    x = 247,920,322,347.53/569,889.14
  6. Step 6: Final answer
    x = 435,032.54

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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.