Home / 1,243,512.81-1,715,925.12-699,636.57

Finding the Fourth Proportional to 1,243,512.81, 1,715,925.12 and 699,636.57

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Solution

The fourth proportional to 1,243,512.81, 1,715,925.12 and 699,636.57 is: 965,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,512.81 : 1,715,925.12 = 699,636.57 : x
  2. Step 2: Convert to fraction form
    1,243,512.81/1,715,925.12 = 699,636.57/x
  3. Step 3: Cross multiply
    1,243,512.81x = 1,715,925.12 × 699,636.57
  4. Step 4: Simplify right side
    1,243,512.81x = 1,200,523,965,333.64
  5. Step 5: Solve for x
    x = 1,200,523,965,333.64/1,243,512.81
  6. Step 6: Final answer
    x = 965,429.51

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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.