Home / 1,178,188.20-1,625,809.32-661,777.56

Finding the Fourth Proportional to 1,178,188.20, 1,625,809.32 and 661,777.56

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Solution

The fourth proportional to 1,178,188.20, 1,625,809.32 and 661,777.56 is: 913,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,188.20 : 1,625,809.32 = 661,777.56 : x
  2. Step 2: Convert to fraction form
    1,178,188.20/1,625,809.32 = 661,777.56/x
  3. Step 3: Cross multiply
    1,178,188.20x = 1,625,809.32 × 661,777.56
  4. Step 4: Simplify right side
    1,178,188.20x = 1,075,924,124,814.86
  5. Step 5: Solve for x
    x = 1,075,924,124,814.86/1,178,188.20
  6. Step 6: Final answer
    x = 913,202.26

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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.