Home / 919,110.78-1,267,482.33-613,199.60

Finding the Fourth Proportional to 919,110.78, 1,267,482.33 and 613,199.60

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Solution

The fourth proportional to 919,110.78, 1,267,482.33 and 613,199.60 is: 845,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,110.78 : 1,267,482.33 = 613,199.60 : x
  2. Step 2: Convert to fraction form
    919,110.78/1,267,482.33 = 613,199.60/x
  3. Step 3: Cross multiply
    919,110.78x = 1,267,482.33 × 613,199.60
  4. Step 4: Simplify right side
    919,110.78x = 777,219,656,178.72
  5. Step 5: Solve for x
    x = 777,219,656,178.72/919,110.78
  6. Step 6: Final answer
    x = 845,621.30

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1.5x scale

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.