Home / 919,106.60-1,379,696.70-545,340.20

Finding the Fourth Proportional to 919,106.60, 1,379,696.70 and 545,340.20

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Solution

The fourth proportional to 919,106.60, 1,379,696.70 and 545,340.20 is: 818,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,106.60 : 1,379,696.70 = 545,340.20 : x
  2. Step 2: Convert to fraction form
    919,106.60/1,379,696.70 = 545,340.20/x
  3. Step 3: Cross multiply
    919,106.60x = 1,379,696.70 × 545,340.20
  4. Step 4: Simplify right side
    919,106.60x = 752,404,074,317.34
  5. Step 5: Solve for x
    x = 752,404,074,317.34/919,106.60
  6. Step 6: Final answer
    x = 818,625.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.