Home / 685,619.66-1,028,823.30-535,438.37

Finding the Fourth Proportional to 685,619.66, 1,028,823.30 and 535,438.37

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Solution

The fourth proportional to 685,619.66, 1,028,823.30 and 535,438.37 is: 803,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,619.66 : 1,028,823.30 = 535,438.37 : x
  2. Step 2: Convert to fraction form
    685,619.66/1,028,823.30 = 535,438.37/x
  3. Step 3: Cross multiply
    685,619.66x = 1,028,823.30 × 535,438.37
  4. Step 4: Simplify right side
    685,619.66x = 550,871,470,770.02
  5. Step 5: Solve for x
    x = 550,871,470,770.02/685,619.66
  6. Step 6: Final answer
    x = 803,465.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.