Home / 1,298,776.59-1,792,156.47-717,921.26

Finding the Fourth Proportional to 1,298,776.59, 1,792,156.47 and 717,921.26

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Solution

The fourth proportional to 1,298,776.59, 1,792,156.47 and 717,921.26 is: 990,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,776.59 : 1,792,156.47 = 717,921.26 : x
  2. Step 2: Convert to fraction form
    1,298,776.59/1,792,156.47 = 717,921.26/x
  3. Step 3: Cross multiply
    1,298,776.59x = 1,792,156.47 × 717,921.26
  4. Step 4: Simplify right side
    1,298,776.59x = 1,286,627,222,098.77
  5. Step 5: Solve for x
    x = 1,286,627,222,098.77/1,298,776.59
  6. Step 6: Final answer
    x = 990,645.53

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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.