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Finding the Fourth Proportional to 393,373,313.60, 590,059,970.40 and 393,373,313.60

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Solution

The fourth proportional to 393,373,313.60, 590,059,970.40 and 393,373,313.60 is: 590,059,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,373,313.60 : 590,059,970.40 = 393,373,313.60 : x
  2. Step 2: Convert to fraction form
    393,373,313.60/590,059,970.40 = 393,373,313.60/x
  3. Step 3: Cross multiply
    393,373,313.60x = 590,059,970.40 × 393,373,313.60
  4. Step 4: Simplify right side
    393,373,313.60x = 232,113,845,778,965,920
  5. Step 5: Solve for x
    x = 232,113,845,778,965,920/393,373,313.60
  6. Step 6: Final answer
    x = 590,059,970.40

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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.