Home / 1,208,210.24-1,665,782.35-989,613.62

Finding the Fourth Proportional to 1,208,210.24, 1,665,782.35 and 989,613.62

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Solution

The fourth proportional to 1,208,210.24, 1,665,782.35 and 989,613.62 is: 1,364,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,210.24 : 1,665,782.35 = 989,613.62 : x
  2. Step 2: Convert to fraction form
    1,208,210.24/1,665,782.35 = 989,613.62/x
  3. Step 3: Cross multiply
    1,208,210.24x = 1,665,782.35 × 989,613.62
  4. Step 4: Simplify right side
    1,208,210.24x = 1,648,480,890,712.66
  5. Step 5: Solve for x
    x = 1,648,480,890,712.66/1,208,210.24
  6. Step 6: Final answer
    x = 1,364,399.04

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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.