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Finding the Fourth Proportional to 416,715.09, 575,069.57 and 225,728.47

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Solution

The fourth proportional to 416,715.09, 575,069.57 and 225,728.47 is: 311,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,715.09 : 575,069.57 = 225,728.47 : x
  2. Step 2: Convert to fraction form
    416,715.09/575,069.57 = 225,728.47/x
  3. Step 3: Cross multiply
    416,715.09x = 575,069.57 × 225,728.47
  4. Step 4: Simplify right side
    416,715.09x = 129,809,574,179.66
  5. Step 5: Solve for x
    x = 129,809,574,179.66/416,715.09
  6. Step 6: Final answer
    x = 311,506.78

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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.