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Finding the Fourth Proportional to 691,027.94, 953,651.02 and 404,640.28

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Solution

The fourth proportional to 691,027.94, 953,651.02 and 404,640.28 is: 558,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,027.94 : 953,651.02 = 404,640.28 : x
  2. Step 2: Convert to fraction form
    691,027.94/953,651.02 = 404,640.28/x
  3. Step 3: Cross multiply
    691,027.94x = 953,651.02 × 404,640.28
  4. Step 4: Simplify right side
    691,027.94x = 385,885,615,755.09
  5. Step 5: Solve for x
    x = 385,885,615,755.09/691,027.94
  6. Step 6: Final answer
    x = 558,422.60

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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.