Home / 812,583,624.58-1,121,461,131.28-482,558,763.58

Finding the Fourth Proportional to 812,583,624.58, 1,121,461,131.28 and 482,558,763.58

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Solution

The fourth proportional to 812,583,624.58, 1,121,461,131.28 and 482,558,763.58 is: 665,987,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,583,624.58 : 1,121,461,131.28 = 482,558,763.58 : x
  2. Step 2: Convert to fraction form
    812,583,624.58/1,121,461,131.28 = 482,558,763.58/x
  3. Step 3: Cross multiply
    812,583,624.58x = 1,121,461,131.28 × 482,558,763.58
  4. Step 4: Simplify right side
    812,583,624.58x = 541,170,896,913,504,832
  5. Step 5: Solve for x
    x = 541,170,896,913,504,832/812,583,624.58
  6. Step 6: Final answer
    x = 665,987,943.32

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Double scale
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1.5x scale

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.