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Finding the Fourth Proportional to 922,851.99, 1,384,493.25 and 315,645

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Solution

The fourth proportional to 922,851.99, 1,384,493.25 and 315,645 is: 473,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,851.99 : 1,384,493.25 = 315,645 : x
  2. Step 2: Convert to fraction form
    922,851.99/1,384,493.25 = 315,645/x
  3. Step 3: Cross multiply
    922,851.99x = 1,384,493.25 × 315,645
  4. Step 4: Simplify right side
    922,851.99x = 437,008,371,896.25
  5. Step 5: Solve for x
    x = 437,008,371,896.25/922,851.99
  6. Step 6: Final answer
    x = 473,541.13

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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.