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Finding the Fourth Proportional to 539,518.09, 744,535.05 and 297,800.77

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Solution

The fourth proportional to 539,518.09, 744,535.05 and 297,800.77 is: 410,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,518.09 : 744,535.05 = 297,800.77 : x
  2. Step 2: Convert to fraction form
    539,518.09/744,535.05 = 297,800.77/x
  3. Step 3: Cross multiply
    539,518.09x = 744,535.05 × 297,800.77
  4. Step 4: Simplify right side
    539,518.09x = 221,723,111,181.99
  5. Step 5: Solve for x
    x = 221,723,111,181.99/539,518.09
  6. Step 6: Final answer
    x = 410,965.11

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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.