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Finding the Fourth Proportional to 935,286.40, 1,403,160 and 270,505.60

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Solution

The fourth proportional to 935,286.40, 1,403,160 and 270,505.60 is: 405,825.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,286.40 : 1,403,160 = 270,505.60 : x
  2. Step 2: Convert to fraction form
    935,286.40/1,403,160 = 270,505.60/x
  3. Step 3: Cross multiply
    935,286.40x = 1,403,160 × 270,505.60
  4. Step 4: Simplify right side
    935,286.40x = 379,562,637,696.00
  5. Step 5: Solve for x
    x = 379,562,637,696.00/935,286.40
  6. Step 6: Final answer
    x = 405,825.04

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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.