Home / 626,991.37-865,258.10-340,511.45

Finding the Fourth Proportional to 626,991.37, 865,258.10 and 340,511.45

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Solution

The fourth proportional to 626,991.37, 865,258.10 and 340,511.45 is: 469,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,991.37 : 865,258.10 = 340,511.45 : x
  2. Step 2: Convert to fraction form
    626,991.37/865,258.10 = 340,511.45/x
  3. Step 3: Cross multiply
    626,991.37x = 865,258.10 × 340,511.45
  4. Step 4: Simplify right side
    626,991.37x = 294,630,285,503.32
  5. Step 5: Solve for x
    x = 294,630,285,503.32/626,991.37
  6. Step 6: Final answer
    x = 469,911.23

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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.