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Finding the Fourth Proportional to 611,094, 916,665.84 and 291,081.36

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Solution

The fourth proportional to 611,094, 916,665.84 and 291,081.36 is: 436,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,094 : 916,665.84 = 291,081.36 : x
  2. Step 2: Convert to fraction form
    611,094/916,665.84 = 291,081.36/x
  3. Step 3: Cross multiply
    611,094x = 916,665.84 × 291,081.36
  4. Step 4: Simplify right side
    611,094x = 266,824,339,372.74
  5. Step 5: Solve for x
    x = 266,824,339,372.74/611,094
  6. Step 6: Final answer
    x = 436,633.87

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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.