Home / 828,605.55-1,143,632.88-518,651.96

Finding the Fourth Proportional to 828,605.55, 1,143,632.88 and 518,651.96

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Solution

The fourth proportional to 828,605.55, 1,143,632.88 and 518,651.96 is: 715,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,605.55 : 1,143,632.88 = 518,651.96 : x
  2. Step 2: Convert to fraction form
    828,605.55/1,143,632.88 = 518,651.96/x
  3. Step 3: Cross multiply
    828,605.55x = 1,143,632.88 × 518,651.96
  4. Step 4: Simplify right side
    828,605.55x = 593,147,432,139.19
  5. Step 5: Solve for x
    x = 593,147,432,139.19/828,605.55
  6. Step 6: Final answer
    x = 715,838.11

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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.