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Finding the Fourth Proportional to 705,561.87, 972,711.33 and 484,792.43

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Solution

The fourth proportional to 705,561.87, 972,711.33 and 484,792.43 is: 668,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,561.87 : 972,711.33 = 484,792.43 : x
  2. Step 2: Convert to fraction form
    705,561.87/972,711.33 = 484,792.43/x
  3. Step 3: Cross multiply
    705,561.87x = 972,711.33 × 484,792.43
  4. Step 4: Simplify right side
    705,561.87x = 471,563,084,495.68
  5. Step 5: Solve for x
    x = 471,563,084,495.68/705,561.87
  6. Step 6: Final answer
    x = 668,351.15

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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.