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Finding the Fourth Proportional to 611,892.97, 917,579.88 and 291,674.39

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Solution

The fourth proportional to 611,892.97, 917,579.88 and 291,674.39 is: 437,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,892.97 : 917,579.88 = 291,674.39 : x
  2. Step 2: Convert to fraction form
    611,892.97/917,579.88 = 291,674.39/x
  3. Step 3: Cross multiply
    611,892.97x = 917,579.88 × 291,674.39
  4. Step 4: Simplify right side
    611,892.97x = 267,634,547,187.37
  5. Step 5: Solve for x
    x = 267,634,547,187.37/611,892.97
  6. Step 6: Final answer
    x = 437,387.85

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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.