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Finding the Fourth Proportional to 647,220.33, 893,168.19 and 360,758.57

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Solution

The fourth proportional to 647,220.33, 893,168.19 and 360,758.57 is: 497,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,220.33 : 893,168.19 = 360,758.57 : x
  2. Step 2: Convert to fraction form
    647,220.33/893,168.19 = 360,758.57/x
  3. Step 3: Cross multiply
    647,220.33x = 893,168.19 × 360,758.57
  4. Step 4: Simplify right side
    647,220.33x = 322,218,074,528.05
  5. Step 5: Solve for x
    x = 322,218,074,528.05/647,220.33
  6. Step 6: Final answer
    x = 497,849.12

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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.