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Finding the Fourth Proportional to 892,893.60, 1,339,340.40 and 626,954.40

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Solution

The fourth proportional to 892,893.60, 1,339,340.40 and 626,954.40 is: 940,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,893.60 : 1,339,340.40 = 626,954.40 : x
  2. Step 2: Convert to fraction form
    892,893.60/1,339,340.40 = 626,954.40/x
  3. Step 3: Cross multiply
    892,893.60x = 1,339,340.40 × 626,954.40
  4. Step 4: Simplify right side
    892,893.60x = 839,705,356,877.76
  5. Step 5: Solve for x
    x = 839,705,356,877.76/892,893.60
  6. Step 6: Final answer
    x = 940,431.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.