Home / 809,852.67-1,117,590.12-447,301.38

Finding the Fourth Proportional to 809,852.67, 1,117,590.12 and 447,301.38

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Solution

The fourth proportional to 809,852.67, 1,117,590.12 and 447,301.38 is: 617,272.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,852.67 : 1,117,590.12 = 447,301.38 : x
  2. Step 2: Convert to fraction form
    809,852.67/1,117,590.12 = 447,301.38/x
  3. Step 3: Cross multiply
    809,852.67x = 1,117,590.12 × 447,301.38
  4. Step 4: Simplify right side
    809,852.67x = 499,899,602,950.37
  5. Step 5: Solve for x
    x = 499,899,602,950.37/809,852.67
  6. Step 6: Final answer
    x = 617,272.28

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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.