Home / 947,804.45-1,307,970.05-518,086.31

Finding the Fourth Proportional to 947,804.45, 1,307,970.05 and 518,086.31

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Solution

The fourth proportional to 947,804.45, 1,307,970.05 and 518,086.31 is: 714,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,804.45 : 1,307,970.05 = 518,086.31 : x
  2. Step 2: Convert to fraction form
    947,804.45/1,307,970.05 = 518,086.31/x
  3. Step 3: Cross multiply
    947,804.45x = 1,307,970.05 × 518,086.31
  4. Step 4: Simplify right side
    947,804.45x = 677,641,367,664.73
  5. Step 5: Solve for x
    x = 677,641,367,664.73/947,804.45
  6. Step 6: Final answer
    x = 714,959.05

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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.