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Finding the Fourth Proportional to 562,571.88, 776,356.48 and 307,917.60

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Solution

The fourth proportional to 562,571.88, 776,356.48 and 307,917.60 is: 424,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,571.88 : 776,356.48 = 307,917.60 : x
  2. Step 2: Convert to fraction form
    562,571.88/776,356.48 = 307,917.60/x
  3. Step 3: Cross multiply
    562,571.88x = 776,356.48 × 307,917.60
  4. Step 4: Simplify right side
    562,571.88x = 239,053,824,066.05
  5. Step 5: Solve for x
    x = 239,053,824,066.05/562,571.88
  6. Step 6: Final answer
    x = 424,930.28

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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.