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Finding the Fourth Proportional to 404,675.60, 607,704.60 and 265,053.20

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Solution

The fourth proportional to 404,675.60, 607,704.60 and 265,053.20 is: 398,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,675.60 : 607,704.60 = 265,053.20 : x
  2. Step 2: Convert to fraction form
    404,675.60/607,704.60 = 265,053.20/x
  3. Step 3: Cross multiply
    404,675.60x = 607,704.60 × 265,053.20
  4. Step 4: Simplify right side
    404,675.60x = 161,074,048,884.72
  5. Step 5: Solve for x
    x = 161,074,048,884.72/404,675.60
  6. Step 6: Final answer
    x = 398,032.52

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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.