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Finding the Fourth Proportional to 539,479.54, 744,428.74 and 297,746.54

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Solution

The fourth proportional to 539,479.54, 744,428.74 and 297,746.54 is: 410,860.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,479.54 : 744,428.74 = 297,746.54 : x
  2. Step 2: Convert to fraction form
    539,479.54/744,428.74 = 297,746.54/x
  3. Step 3: Cross multiply
    539,479.54x = 744,428.74 × 297,746.54
  4. Step 4: Simplify right side
    539,479.54x = 221,651,081,611.56
  5. Step 5: Solve for x
    x = 221,651,081,611.56/539,479.54
  6. Step 6: Final answer
    x = 410,860.96

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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.