Home / 878,777.57-1,212,637.59-511,322.69

Finding the Fourth Proportional to 878,777.57, 1,212,637.59 and 511,322.69

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Solution

The fourth proportional to 878,777.57, 1,212,637.59 and 511,322.69 is: 705,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,777.57 : 1,212,637.59 = 511,322.69 : x
  2. Step 2: Convert to fraction form
    878,777.57/1,212,637.59 = 511,322.69/x
  3. Step 3: Cross multiply
    878,777.57x = 1,212,637.59 × 511,322.69
  4. Step 4: Simplify right side
    878,777.57x = 620,049,108,450.73
  5. Step 5: Solve for x
    x = 620,049,108,450.73/878,777.57
  6. Step 6: Final answer
    x = 705,581.40

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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.