Home / 810,091.52-1,117,922.70-447,515.56

Finding the Fourth Proportional to 810,091.52, 1,117,922.70 and 447,515.56

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Solution

The fourth proportional to 810,091.52, 1,117,922.70 and 447,515.56 is: 617,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,091.52 : 1,117,922.70 = 447,515.56 : x
  2. Step 2: Convert to fraction form
    810,091.52/1,117,922.70 = 447,515.56/x
  3. Step 3: Cross multiply
    810,091.52x = 1,117,922.70 × 447,515.56
  4. Step 4: Simplify right side
    810,091.52x = 500,287,803,127.21
  5. Step 5: Solve for x
    x = 500,287,803,127.21/810,091.52
  6. Step 6: Final answer
    x = 617,569.49

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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.