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Finding the Fourth Proportional to 539,696.41, 744,810.23 and 297,978.23

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Solution

The fourth proportional to 539,696.41, 744,810.23 and 297,978.23 is: 411,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,696.41 : 744,810.23 = 297,978.23 : x
  2. Step 2: Convert to fraction form
    539,696.41/744,810.23 = 297,978.23/x
  3. Step 3: Cross multiply
    539,696.41x = 744,810.23 × 297,978.23
  4. Step 4: Simplify right side
    539,696.41x = 221,937,234,021.29
  5. Step 5: Solve for x
    x = 221,937,234,021.29/539,696.41
  6. Step 6: Final answer
    x = 411,226.07

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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.