Home / 685,614.85-1,028,816.08-535,433.56

Finding the Fourth Proportional to 685,614.85, 1,028,816.08 and 535,433.56

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Solution

The fourth proportional to 685,614.85, 1,028,816.08 and 535,433.56 is: 803,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,614.85 : 1,028,816.08 = 535,433.56 : x
  2. Step 2: Convert to fraction form
    685,614.85/1,028,816.08 = 535,433.56/x
  3. Step 3: Cross multiply
    685,614.85x = 1,028,816.08 × 535,433.56
  4. Step 4: Simplify right side
    685,614.85x = 550,862,652,389.02
  5. Step 5: Solve for x
    x = 550,862,652,389.02/685,614.85
  6. Step 6: Final answer
    x = 803,457.88

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1.5x scale

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.