Home / 779,968.20-1,168,202.70-640,000.20

Finding the Fourth Proportional to 779,968.20, 1,168,202.70 and 640,000.20

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Solution

The fourth proportional to 779,968.20, 1,168,202.70 and 640,000.20 is: 958,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,968.20 : 1,168,202.70 = 640,000.20 : x
  2. Step 2: Convert to fraction form
    779,968.20/1,168,202.70 = 640,000.20/x
  3. Step 3: Cross multiply
    779,968.20x = 1,168,202.70 × 640,000.20
  4. Step 4: Simplify right side
    779,968.20x = 747,649,961,640.54
  5. Step 5: Solve for x
    x = 747,649,961,640.54/779,968.20
  6. Step 6: Final answer
    x = 958,564.67

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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.