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Finding the Fourth Proportional to 494,801.10, 742,201.65 and 368,829.90

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Solution

The fourth proportional to 494,801.10, 742,201.65 and 368,829.90 is: 553,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,801.10 : 742,201.65 = 368,829.90 : x
  2. Step 2: Convert to fraction form
    494,801.10/742,201.65 = 368,829.90/x
  3. Step 3: Cross multiply
    494,801.10x = 742,201.65 × 368,829.90
  4. Step 4: Simplify right side
    494,801.10x = 273,746,160,349.34
  5. Step 5: Solve for x
    x = 273,746,160,349.34/494,801.10
  6. Step 6: Final answer
    x = 553,244.85

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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.