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Finding the Fourth Proportional to 543,813.54, 750,483.96 and 372,091.65

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Solution

The fourth proportional to 543,813.54, 750,483.96 and 372,091.65 is: 513,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,813.54 : 750,483.96 = 372,091.65 : x
  2. Step 2: Convert to fraction form
    543,813.54/750,483.96 = 372,091.65/x
  3. Step 3: Cross multiply
    543,813.54x = 750,483.96 × 372,091.65
  4. Step 4: Simplify right side
    543,813.54x = 279,248,814,974.93
  5. Step 5: Solve for x
    x = 279,248,814,974.93/543,813.54
  6. Step 6: Final answer
    x = 513,501.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.