Home / 1,288,683.16-1,778,419.66-715,760.23

Finding the Fourth Proportional to 1,288,683.16, 1,778,419.66 and 715,760.23

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Solution

The fourth proportional to 1,288,683.16, 1,778,419.66 and 715,760.23 is: 987,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,683.16 : 1,778,419.66 = 715,760.23 : x
  2. Step 2: Convert to fraction form
    1,288,683.16/1,778,419.66 = 715,760.23/x
  3. Step 3: Cross multiply
    1,288,683.16x = 1,778,419.66 × 715,760.23
  4. Step 4: Simplify right side
    1,288,683.16x = 1,272,922,064,878.12
  5. Step 5: Solve for x
    x = 1,272,922,064,878.12/1,288,683.16
  6. Step 6: Final answer
    x = 987,769.61

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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.