Home / 520,989,944.60-718,967,538.24-286,055,822

Finding the Fourth Proportional to 520,989,944.60, 718,967,538.24 and 286,055,822

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Solution

The fourth proportional to 520,989,944.60, 718,967,538.24 and 286,055,822 is: 394,757,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,989,944.60 : 718,967,538.24 = 286,055,822 : x
  2. Step 2: Convert to fraction form
    520,989,944.60/718,967,538.24 = 286,055,822/x
  3. Step 3: Cross multiply
    520,989,944.60x = 718,967,538.24 × 286,055,822
  4. Step 4: Simplify right side
    520,989,944.60x = 205,664,850,142,559,648
  5. Step 5: Solve for x
    x = 205,664,850,142,559,648/520,989,944.60
  6. Step 6: Final answer
    x = 394,757,811.11

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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.