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Finding the Fourth Proportional to 567,454.99, 783,093.15 and 312,815.29

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Solution

The fourth proportional to 567,454.99, 783,093.15 and 312,815.29 is: 431,688.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,454.99 : 783,093.15 = 312,815.29 : x
  2. Step 2: Convert to fraction form
    567,454.99/783,093.15 = 312,815.29/x
  3. Step 3: Cross multiply
    567,454.99x = 783,093.15 × 312,815.29
  4. Step 4: Simplify right side
    567,454.99x = 244,963,510,814.26
  5. Step 5: Solve for x
    x = 244,963,510,814.26/567,454.99
  6. Step 6: Final answer
    x = 431,688.00

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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.