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Finding the Fourth Proportional to 935,633,978.70, 1,401,939,313.65 and 589,969,005.90

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Solution

The fourth proportional to 935,633,978.70, 1,401,939,313.65 and 589,969,005.90 is: 884,000,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,633,978.70 : 1,401,939,313.65 = 589,969,005.90 : x
  2. Step 2: Convert to fraction form
    935,633,978.70/1,401,939,313.65 = 589,969,005.90/x
  3. Step 3: Cross multiply
    935,633,978.70x = 1,401,939,313.65 × 589,969,005.90
  4. Step 4: Simplify right side
    935,633,978.70x = 827,100,743,206,218,880
  5. Step 5: Solve for x
    x = 827,100,743,206,218,880/935,633,978.70
  6. Step 6: Final answer
    x = 884,000,327.09

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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.