Home / 1,279,762.63-1,919,643.95-381,181.01

Finding the Fourth Proportional to 1,279,762.63, 1,919,643.95 and 381,181.01

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Solution

The fourth proportional to 1,279,762.63, 1,919,643.95 and 381,181.01 is: 571,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,762.63 : 1,919,643.95 = 381,181.01 : x
  2. Step 2: Convert to fraction form
    1,279,762.63/1,919,643.95 = 381,181.01/x
  3. Step 3: Cross multiply
    1,279,762.63x = 1,919,643.95 × 381,181.01
  4. Step 4: Simplify right side
    1,279,762.63x = 731,731,811,056.12
  5. Step 5: Solve for x
    x = 731,731,811,056.12/1,279,762.63
  6. Step 6: Final answer
    x = 571,771.51

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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.