Home / 783,860.82-1,081,958.14-511,970.28

Finding the Fourth Proportional to 783,860.82, 1,081,958.14 and 511,970.28

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Solution

The fourth proportional to 783,860.82, 1,081,958.14 and 511,970.28 is: 706,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,860.82 : 1,081,958.14 = 511,970.28 : x
  2. Step 2: Convert to fraction form
    783,860.82/1,081,958.14 = 511,970.28/x
  3. Step 3: Cross multiply
    783,860.82x = 1,081,958.14 × 511,970.28
  4. Step 4: Simplify right side
    783,860.82x = 553,930,411,884.08
  5. Step 5: Solve for x
    x = 553,930,411,884.08/783,860.82
  6. Step 6: Final answer
    x = 706,669.34

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1.5x scale

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.