Home / 1,190,063.78-1,785,153.06-391,327.64

Finding the Fourth Proportional to 1,190,063.78, 1,785,153.06 and 391,327.64

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Solution

The fourth proportional to 1,190,063.78, 1,785,153.06 and 391,327.64 is: 587,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,063.78 : 1,785,153.06 = 391,327.64 : x
  2. Step 2: Convert to fraction form
    1,190,063.78/1,785,153.06 = 391,327.64/x
  3. Step 3: Cross multiply
    1,190,063.78x = 1,785,153.06 × 391,327.64
  4. Step 4: Simplify right side
    1,190,063.78x = 698,579,734,008.58
  5. Step 5: Solve for x
    x = 698,579,734,008.58/1,190,063.78
  6. Step 6: Final answer
    x = 587,010.33

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1.5x scale

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.