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Finding the Fourth Proportional to 539,467.83, 744,412.61 and 297,734.80

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Solution

The fourth proportional to 539,467.83, 744,412.61 and 297,734.80 is: 410,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,467.83 : 744,412.61 = 297,734.80 : x
  2. Step 2: Convert to fraction form
    539,467.83/744,412.61 = 297,734.80/x
  3. Step 3: Cross multiply
    539,467.83x = 744,412.61 × 297,734.80
  4. Step 4: Simplify right side
    539,467.83x = 221,637,539,555.83
  5. Step 5: Solve for x
    x = 221,637,539,555.83/539,467.83
  6. Step 6: Final answer
    x = 410,844.78

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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.