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Finding the Fourth Proportional to 508,392,002.60, 762,588,003.90 and 508,392,002.60

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Solution

The fourth proportional to 508,392,002.60, 762,588,003.90 and 508,392,002.60 is: 762,588,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,392,002.60 : 762,588,003.90 = 508,392,002.60 : x
  2. Step 2: Convert to fraction form
    508,392,002.60/762,588,003.90 = 508,392,002.60/x
  3. Step 3: Cross multiply
    508,392,002.60x = 762,588,003.90 × 508,392,002.60
  4. Step 4: Simplify right side
    508,392,002.60x = 387,693,642,461,457,600
  5. Step 5: Solve for x
    x = 387,693,642,461,457,600/508,392,002.60
  6. Step 6: Final answer
    x = 762,588,003.90

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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.