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Finding the Fourth Proportional to 401,076.40, 601,614.60 and 355,975.60

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Solution

The fourth proportional to 401,076.40, 601,614.60 and 355,975.60 is: 533,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,076.40 : 601,614.60 = 355,975.60 : x
  2. Step 2: Convert to fraction form
    401,076.40/601,614.60 = 355,975.60/x
  3. Step 3: Cross multiply
    401,076.40x = 601,614.60 × 355,975.60
  4. Step 4: Simplify right side
    401,076.40x = 214,160,118,203.76
  5. Step 5: Solve for x
    x = 214,160,118,203.76/401,076.40
  6. Step 6: Final answer
    x = 533,963.40

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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.