Home / 809,590.16-1,117,229.63-447,011.08

Finding the Fourth Proportional to 809,590.16, 1,117,229.63 and 447,011.08

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Solution

The fourth proportional to 809,590.16, 1,117,229.63 and 447,011.08 is: 616,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,590.16 : 1,117,229.63 = 447,011.08 : x
  2. Step 2: Convert to fraction form
    809,590.16/1,117,229.63 = 447,011.08/x
  3. Step 3: Cross multiply
    809,590.16x = 1,117,229.63 × 447,011.08
  4. Step 4: Simplify right side
    809,590.16x = 499,414,018,486.17
  5. Step 5: Solve for x
    x = 499,414,018,486.17/809,590.16
  6. Step 6: Final answer
    x = 616,872.64

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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.