Home / 812,263.68-1,121,515.20-652,000.32

Finding the Fourth Proportional to 812,263.68, 1,121,515.20 and 652,000.32

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Solution

The fourth proportional to 812,263.68, 1,121,515.20 and 652,000.32 is: 900,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,263.68 : 1,121,515.20 = 652,000.32 : x
  2. Step 2: Convert to fraction form
    812,263.68/1,121,515.20 = 652,000.32/x
  3. Step 3: Cross multiply
    812,263.68x = 1,121,515.20 × 652,000.32
  4. Step 4: Simplify right side
    812,263.68x = 731,228,269,284.86
  5. Step 5: Solve for x
    x = 731,228,269,284.86/812,263.68
  6. Step 6: Final answer
    x = 900,235.09

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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.