Home / 769,635.76-1,062,101.28-430,109.68

Finding the Fourth Proportional to 769,635.76, 1,062,101.28 and 430,109.68

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Solution

The fourth proportional to 769,635.76, 1,062,101.28 and 430,109.68 is: 593,553.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,635.76 : 1,062,101.28 = 430,109.68 : x
  2. Step 2: Convert to fraction form
    769,635.76/1,062,101.28 = 430,109.68/x
  3. Step 3: Cross multiply
    769,635.76x = 1,062,101.28 × 430,109.68
  4. Step 4: Simplify right side
    769,635.76x = 456,820,041,668.39
  5. Step 5: Solve for x
    x = 456,820,041,668.39/769,635.76
  6. Step 6: Final answer
    x = 593,553.56

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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.