Home / 648,836.70-888,891.43-624,578.06

Finding the Fourth Proportional to 648,836.70, 888,891.43 and 624,578.06

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Solution

The fourth proportional to 648,836.70, 888,891.43 and 624,578.06 is: 855,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,836.70 : 888,891.43 = 624,578.06 : x
  2. Step 2: Convert to fraction form
    648,836.70/888,891.43 = 624,578.06/x
  3. Step 3: Cross multiply
    648,836.70x = 888,891.43 × 624,578.06
  4. Step 4: Simplify right side
    648,836.70x = 555,182,084,900.03
  5. Step 5: Solve for x
    x = 555,182,084,900.03/648,836.70
  6. Step 6: Final answer
    x = 855,657.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.