Home / 819,100.16-1,129,338.24-683,331.20

Finding the Fourth Proportional to 819,100.16, 1,129,338.24 and 683,331.20

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Solution

The fourth proportional to 819,100.16, 1,129,338.24 and 683,331.20 is: 942,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,100.16 : 1,129,338.24 = 683,331.20 : x
  2. Step 2: Convert to fraction form
    819,100.16/1,129,338.24 = 683,331.20/x
  3. Step 3: Cross multiply
    819,100.16x = 1,129,338.24 × 683,331.20
  4. Step 4: Simplify right side
    819,100.16x = 771,712,054,745.09
  5. Step 5: Solve for x
    x = 771,712,054,745.09/819,100.16
  6. Step 6: Final answer
    x = 942,146.14

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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.