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Finding the Fourth Proportional to 647,782.44, 893,476.86 and 561,587.22

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Solution

The fourth proportional to 647,782.44, 893,476.86 and 561,587.22 is: 774,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,782.44 : 893,476.86 = 561,587.22 : x
  2. Step 2: Convert to fraction form
    647,782.44/893,476.86 = 561,587.22/x
  3. Step 3: Cross multiply
    647,782.44x = 893,476.86 × 561,587.22
  4. Step 4: Simplify right side
    647,782.44x = 501,765,185,941.73
  5. Step 5: Solve for x
    x = 501,765,185,941.73/647,782.44
  6. Step 6: Final answer
    x = 774,589.05

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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.