Home / 866,228.10-1,299,317.85-392,912.70

Finding the Fourth Proportional to 866,228.10, 1,299,317.85 and 392,912.70

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Solution

The fourth proportional to 866,228.10, 1,299,317.85 and 392,912.70 is: 589,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,228.10 : 1,299,317.85 = 392,912.70 : x
  2. Step 2: Convert to fraction form
    866,228.10/1,299,317.85 = 392,912.70/x
  3. Step 3: Cross multiply
    866,228.10x = 1,299,317.85 × 392,912.70
  4. Step 4: Simplify right side
    866,228.10x = 510,518,484,601.70
  5. Step 5: Solve for x
    x = 510,518,484,601.70/866,228.10
  6. Step 6: Final answer
    x = 589,358.03

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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.