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Finding the Fourth Proportional to 693,899, 957,580.62 and 375,947

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Solution

The fourth proportional to 693,899, 957,580.62 and 375,947 is: 518,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,899 : 957,580.62 = 375,947 : x
  2. Step 2: Convert to fraction form
    693,899/957,580.62 = 375,947/x
  3. Step 3: Cross multiply
    693,899x = 957,580.62 × 375,947
  4. Step 4: Simplify right side
    693,899x = 359,999,561,347.14
  5. Step 5: Solve for x
    x = 359,999,561,347.14/693,899
  6. Step 6: Final answer
    x = 518,806.86

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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.