Home / 1,222,277.12-1,686,605.62-678,435.83

Finding the Fourth Proportional to 1,222,277.12, 1,686,605.62 and 678,435.83

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Solution

The fourth proportional to 1,222,277.12, 1,686,605.62 and 678,435.83 is: 936,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,277.12 : 1,686,605.62 = 678,435.83 : x
  2. Step 2: Convert to fraction form
    1,222,277.12/1,686,605.62 = 678,435.83/x
  3. Step 3: Cross multiply
    1,222,277.12x = 1,686,605.62 × 678,435.83
  4. Step 4: Simplify right side
    1,222,277.12x = 1,144,253,683,687.36
  5. Step 5: Solve for x
    x = 1,144,253,683,687.36/1,222,277.12
  6. Step 6: Final answer
    x = 936,165.51

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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.