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Finding the Fourth Proportional to 718,588, 1,077,877.68 and 186,107.68

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Solution

The fourth proportional to 718,588, 1,077,877.68 and 186,107.68 is: 279,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,588 : 1,077,877.68 = 186,107.68 : x
  2. Step 2: Convert to fraction form
    718,588/1,077,877.68 = 186,107.68/x
  3. Step 3: Cross multiply
    718,588x = 1,077,877.68 × 186,107.68
  4. Step 4: Simplify right side
    718,588x = 200,601,314,348.58
  5. Step 5: Solve for x
    x = 200,601,314,348.58/718,588
  6. Step 6: Final answer
    x = 279,160.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.