Home / 1,207,920.42-1,666,866.06-663,951.51

Finding the Fourth Proportional to 1,207,920.42, 1,666,866.06 and 663,951.51

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Solution

The fourth proportional to 1,207,920.42, 1,666,866.06 and 663,951.51 is: 916,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,920.42 : 1,666,866.06 = 663,951.51 : x
  2. Step 2: Convert to fraction form
    1,207,920.42/1,666,866.06 = 663,951.51/x
  3. Step 3: Cross multiply
    1,207,920.42x = 1,666,866.06 × 663,951.51
  4. Step 4: Simplify right side
    1,207,920.42x = 1,106,718,237,504.75
  5. Step 5: Solve for x
    x = 1,106,718,237,504.75/1,207,920.42
  6. Step 6: Final answer
    x = 916,217.84

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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.