Home / 1,207,811.86-1,666,785.75-663,982.62

Finding the Fourth Proportional to 1,207,811.86, 1,666,785.75 and 663,982.62

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Solution

The fourth proportional to 1,207,811.86, 1,666,785.75 and 663,982.62 is: 916,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,811.86 : 1,666,785.75 = 663,982.62 : x
  2. Step 2: Convert to fraction form
    1,207,811.86/1,666,785.75 = 663,982.62/x
  3. Step 3: Cross multiply
    1,207,811.86x = 1,666,785.75 × 663,982.62
  4. Step 4: Simplify right side
    1,207,811.86x = 1,106,716,764,258.19
  5. Step 5: Solve for x
    x = 1,106,716,764,258.19/1,207,811.86
  6. Step 6: Final answer
    x = 916,298.97

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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.