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Finding the Fourth Proportional to 610,866.72, 916,572.24 and 236,918.88

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Solution

The fourth proportional to 610,866.72, 916,572.24 and 236,918.88 is: 355,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,866.72 : 916,572.24 = 236,918.88 : x
  2. Step 2: Convert to fraction form
    610,866.72/916,572.24 = 236,918.88/x
  3. Step 3: Cross multiply
    610,866.72x = 916,572.24 × 236,918.88
  4. Step 4: Simplify right side
    610,866.72x = 217,153,268,539.89
  5. Step 5: Solve for x
    x = 217,153,268,539.89/610,866.72
  6. Step 6: Final answer
    x = 355,483.87

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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.