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Finding the Fourth Proportional to 590,976,626.80, 886,464,940.20 and 547,978,457.20

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Solution

The fourth proportional to 590,976,626.80, 886,464,940.20 and 547,978,457.20 is: 821,967,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,976,626.80 : 886,464,940.20 = 547,978,457.20 : x
  2. Step 2: Convert to fraction form
    590,976,626.80/886,464,940.20 = 547,978,457.20/x
  3. Step 3: Cross multiply
    590,976,626.80x = 886,464,940.20 × 547,978,457.20
  4. Step 4: Simplify right side
    590,976,626.80x = 485,763,690,292,686,336
  5. Step 5: Solve for x
    x = 485,763,690,292,686,336/590,976,626.80
  6. Step 6: Final answer
    x = 821,967,685.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.