Home / 641,527.04-885,219.68-369,493.76

Finding the Fourth Proportional to 641,527.04, 885,219.68 and 369,493.76

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Solution

The fourth proportional to 641,527.04, 885,219.68 and 369,493.76 is: 509,850.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,527.04 : 885,219.68 = 369,493.76 : x
  2. Step 2: Convert to fraction form
    641,527.04/885,219.68 = 369,493.76/x
  3. Step 3: Cross multiply
    641,527.04x = 885,219.68 × 369,493.76
  4. Step 4: Simplify right side
    641,527.04x = 327,083,147,989.20
  5. Step 5: Solve for x
    x = 327,083,147,989.20/641,527.04
  6. Step 6: Final answer
    x = 509,850.91

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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.