Home / 811,870.56-1,120,399.68-525,888.48

Finding the Fourth Proportional to 811,870.56, 1,120,399.68 and 525,888.48

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Solution

The fourth proportional to 811,870.56, 1,120,399.68 and 525,888.48 is: 725,737.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,870.56 : 1,120,399.68 = 525,888.48 : x
  2. Step 2: Convert to fraction form
    811,870.56/1,120,399.68 = 525,888.48/x
  3. Step 3: Cross multiply
    811,870.56x = 1,120,399.68 × 525,888.48
  4. Step 4: Simplify right side
    811,870.56x = 589,205,284,707.69
  5. Step 5: Solve for x
    x = 589,205,284,707.69/811,870.56
  6. Step 6: Final answer
    x = 725,737.96

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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.