Home / 869,609.76-1,199,509.20-628,247.04

Finding the Fourth Proportional to 869,609.76, 1,199,509.20 and 628,247.04

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Solution

The fourth proportional to 869,609.76, 1,199,509.20 and 628,247.04 is: 866,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,609.76 : 1,199,509.20 = 628,247.04 : x
  2. Step 2: Convert to fraction form
    869,609.76/1,199,509.20 = 628,247.04/x
  3. Step 3: Cross multiply
    869,609.76x = 1,199,509.20 × 628,247.04
  4. Step 4: Simplify right side
    869,609.76x = 753,588,104,352.77
  5. Step 5: Solve for x
    x = 753,588,104,352.77/869,609.76
  6. Step 6: Final answer
    x = 866,581.93

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1.5x scale

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.