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Finding the Fourth Proportional to 647,948,053.92, 894,167,736.48 and 365,749,894

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Solution

The fourth proportional to 647,948,053.92, 894,167,736.48 and 365,749,894 is: 504,734,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,948,053.92 : 894,167,736.48 = 365,749,894 : x
  2. Step 2: Convert to fraction form
    647,948,053.92/894,167,736.48 = 365,749,894/x
  3. Step 3: Cross multiply
    647,948,053.92x = 894,167,736.48 × 365,749,894
  4. Step 4: Simplify right side
    647,948,053.92x = 327,041,754,835,779,968
  5. Step 5: Solve for x
    x = 327,041,754,835,779,968/647,948,053.92
  6. Step 6: Final answer
    x = 504,734,527.49

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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.