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Finding the Fourth Proportional to 872,893.86, 1,204,412.91 and 510,247.62

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Solution

The fourth proportional to 872,893.86, 1,204,412.91 and 510,247.62 is: 704,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,893.86 : 1,204,412.91 = 510,247.62 : x
  2. Step 2: Convert to fraction form
    872,893.86/1,204,412.91 = 510,247.62/x
  3. Step 3: Cross multiply
    872,893.86x = 1,204,412.91 × 510,247.62
  4. Step 4: Simplify right side
    872,893.86x = 614,548,820,824.77
  5. Step 5: Solve for x
    x = 614,548,820,824.77/872,893.86
  6. Step 6: Final answer
    x = 704,036.14

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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.