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Finding the Fourth Proportional to 611,092, 916,662.84 and 291,079.36

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Solution

The fourth proportional to 611,092, 916,662.84 and 291,079.36 is: 436,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,092 : 916,662.84 = 291,079.36 : x
  2. Step 2: Convert to fraction form
    611,092/916,662.84 = 291,079.36/x
  3. Step 3: Cross multiply
    611,092x = 916,662.84 × 291,079.36
  4. Step 4: Simplify right side
    611,092x = 266,821,632,802.98
  5. Step 5: Solve for x
    x = 266,821,632,802.98/611,092
  6. Step 6: Final answer
    x = 436,630.87

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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.