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Finding the Fourth Proportional to 617,305.60, 851,877.12 and 349,043.20

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Solution

The fourth proportional to 617,305.60, 851,877.12 and 349,043.20 is: 481,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,305.60 : 851,877.12 = 349,043.20 : x
  2. Step 2: Convert to fraction form
    617,305.60/851,877.12 = 349,043.20/x
  3. Step 3: Cross multiply
    617,305.60x = 851,877.12 × 349,043.20
  4. Step 4: Simplify right side
    617,305.60x = 297,341,915,971.58
  5. Step 5: Solve for x
    x = 297,341,915,971.58/617,305.60
  6. Step 6: Final answer
    x = 481,677.01

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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.