Home / 878,669.77-1,212,822.07-511,233.36

Finding the Fourth Proportional to 878,669.77, 1,212,822.07 and 511,233.36

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Solution

The fourth proportional to 878,669.77, 1,212,822.07 and 511,233.36 is: 705,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,669.77 : 1,212,822.07 = 511,233.36 : x
  2. Step 2: Convert to fraction form
    878,669.77/1,212,822.07 = 511,233.36/x
  3. Step 3: Cross multiply
    878,669.77x = 1,212,822.07 × 511,233.36
  4. Step 4: Simplify right side
    878,669.77x = 620,035,101,928.26
  5. Step 5: Solve for x
    x = 620,035,101,928.26/878,669.77
  6. Step 6: Final answer
    x = 705,652.02

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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.