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Finding the Fourth Proportional to 404,902.72, 607,146.40 and 236,751.60

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Solution

The fourth proportional to 404,902.72, 607,146.40 and 236,751.60 is: 355,005.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,902.72 : 607,146.40 = 236,751.60 : x
  2. Step 2: Convert to fraction form
    404,902.72/607,146.40 = 236,751.60/x
  3. Step 3: Cross multiply
    404,902.72x = 607,146.40 × 236,751.60
  4. Step 4: Simplify right side
    404,902.72x = 143,742,881,634.24
  5. Step 5: Solve for x
    x = 143,742,881,634.24/404,902.72
  6. Step 6: Final answer
    x = 355,005.97

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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.