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Finding the Fourth Proportional to 368,721.89, 553,186.71 and 333,587.73

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Solution

The fourth proportional to 368,721.89, 553,186.71 and 333,587.73 is: 500,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,721.89 : 553,186.71 = 333,587.73 : x
  2. Step 2: Convert to fraction form
    368,721.89/553,186.71 = 333,587.73/x
  3. Step 3: Cross multiply
    368,721.89x = 553,186.71 × 333,587.73
  4. Step 4: Simplify right side
    368,721.89x = 184,536,298,855.07
  5. Step 5: Solve for x
    x = 184,536,298,855.07/368,721.89
  6. Step 6: Final answer
    x = 500,475.57

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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.