Home / 919,855.54-1,269,378.22-506,388.94

Finding the Fourth Proportional to 919,855.54, 1,269,378.22 and 506,388.94

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Solution

The fourth proportional to 919,855.54, 1,269,378.22 and 506,388.94 is: 698,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,855.54 : 1,269,378.22 = 506,388.94 : x
  2. Step 2: Convert to fraction form
    919,855.54/1,269,378.22 = 506,388.94/x
  3. Step 3: Cross multiply
    919,855.54x = 1,269,378.22 × 506,388.94
  4. Step 4: Simplify right side
    919,855.54x = 642,799,091,284.89
  5. Step 5: Solve for x
    x = 642,799,091,284.89/919,855.54
  6. Step 6: Final answer
    x = 698,804.39

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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.