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Finding the Fourth Proportional to 610,790.36, 916,491.08 and 274,071.72

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Solution

The fourth proportional to 610,790.36, 916,491.08 and 274,071.72 is: 411,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,790.36 : 916,491.08 = 274,071.72 : x
  2. Step 2: Convert to fraction form
    610,790.36/916,491.08 = 274,071.72/x
  3. Step 3: Cross multiply
    610,790.36x = 916,491.08 × 274,071.72
  4. Step 4: Simplify right side
    610,790.36x = 251,184,286,660.26
  5. Step 5: Solve for x
    x = 251,184,286,660.26/610,790.36
  6. Step 6: Final answer
    x = 411,244.68

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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.