Home / 1,065,913.09-1,471,110.08-678,604.79

Finding the Fourth Proportional to 1,065,913.09, 1,471,110.08 and 678,604.79

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Solution

The fourth proportional to 1,065,913.09, 1,471,110.08 and 678,604.79 is: 936,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,913.09 : 1,471,110.08 = 678,604.79 : x
  2. Step 2: Convert to fraction form
    1,065,913.09/1,471,110.08 = 678,604.79/x
  3. Step 3: Cross multiply
    1,065,913.09x = 1,471,110.08 × 678,604.79
  4. Step 4: Simplify right side
    1,065,913.09x = 998,302,342,732.19
  5. Step 5: Solve for x
    x = 998,302,342,732.19/1,065,913.09
  6. Step 6: Final answer
    x = 936,570.11

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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.