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Finding the Fourth Proportional to 1,000,774.44, 1,380,726 and 570,745.44

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Solution

The fourth proportional to 1,000,774.44, 1,380,726 and 570,745.44 is: 787,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,774.44 : 1,380,726 = 570,745.44 : x
  2. Step 2: Convert to fraction form
    1,000,774.44/1,380,726 = 570,745.44/x
  3. Step 3: Cross multiply
    1,000,774.44x = 1,380,726 × 570,745.44
  4. Step 4: Simplify right side
    1,000,774.44x = 788,043,068,389.44
  5. Step 5: Solve for x
    x = 788,043,068,389.44/1,000,774.44
  6. Step 6: Final answer
    x = 787,433.25

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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.