Home / 1,205,615.87-1,663,771.41-661,802.27

Finding the Fourth Proportional to 1,205,615.87, 1,663,771.41 and 661,802.27

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Solution

The fourth proportional to 1,205,615.87, 1,663,771.41 and 661,802.27 is: 913,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,615.87 : 1,663,771.41 = 661,802.27 : x
  2. Step 2: Convert to fraction form
    1,205,615.87/1,663,771.41 = 661,802.27/x
  3. Step 3: Cross multiply
    1,205,615.87x = 1,663,771.41 × 661,802.27
  4. Step 4: Simplify right side
    1,205,615.87x = 1,101,087,695,899.10
  5. Step 5: Solve for x
    x = 1,101,087,695,899.10/1,205,615.87
  6. Step 6: Final answer
    x = 913,298.94

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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.