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Finding the Fourth Proportional to 807,653.76, 1,114,610.88 and 445,076.64

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Solution

The fourth proportional to 807,653.76, 1,114,610.88 and 445,076.64 is: 614,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,653.76 : 1,114,610.88 = 445,076.64 : x
  2. Step 2: Convert to fraction form
    807,653.76/1,114,610.88 = 445,076.64/x
  3. Step 3: Cross multiply
    807,653.76x = 1,114,610.88 × 445,076.64
  4. Step 4: Simplify right side
    807,653.76x = 496,087,265,377.84
  5. Step 5: Solve for x
    x = 496,087,265,377.84/807,653.76
  6. Step 6: Final answer
    x = 614,232.60

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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.