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Finding the Fourth Proportional to 590,980,682.40, 886,471,023.60 and 397,488,919.20

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Solution

The fourth proportional to 590,980,682.40, 886,471,023.60 and 397,488,919.20 is: 596,233,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,980,682.40 : 886,471,023.60 = 397,488,919.20 : x
  2. Step 2: Convert to fraction form
    590,980,682.40/886,471,023.60 = 397,488,919.20/x
  3. Step 3: Cross multiply
    590,980,682.40x = 886,471,023.60 × 397,488,919.20
  4. Step 4: Simplify right side
    590,980,682.40x = 352,362,409,072,881,664
  5. Step 5: Solve for x
    x = 352,362,409,072,881,664/590,980,682.40
  6. Step 6: Final answer
    x = 596,233,378.80

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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.