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Finding the Fourth Proportional to 621,804.10, 933,252.90 and 368,768.20

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Solution

The fourth proportional to 621,804.10, 933,252.90 and 368,768.20 is: 553,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,804.10 : 933,252.90 = 368,768.20 : x
  2. Step 2: Convert to fraction form
    621,804.10/933,252.90 = 368,768.20/x
  3. Step 3: Cross multiply
    621,804.10x = 933,252.90 × 368,768.20
  4. Step 4: Simplify right side
    621,804.10x = 344,153,992,077.78
  5. Step 5: Solve for x
    x = 344,153,992,077.78/621,804.10
  6. Step 6: Final answer
    x = 553,476.56

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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.