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Finding the Fourth Proportional to 994,785.84, 1,372,755.60 and 565,009.56

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Solution

The fourth proportional to 994,785.84, 1,372,755.60 and 565,009.56 is: 779,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,785.84 : 1,372,755.60 = 565,009.56 : x
  2. Step 2: Convert to fraction form
    994,785.84/1,372,755.60 = 565,009.56/x
  3. Step 3: Cross multiply
    994,785.84x = 1,372,755.60 × 565,009.56
  4. Step 4: Simplify right side
    994,785.84x = 775,620,037,543.54
  5. Step 5: Solve for x
    x = 775,620,037,543.54/994,785.84
  6. Step 6: Final answer
    x = 779,685.44

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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.