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Finding the Fourth Proportional to 474,841.40, 655,343.72 and 270,845.60

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Solution

The fourth proportional to 474,841.40, 655,343.72 and 270,845.60 is: 373,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,841.40 : 655,343.72 = 270,845.60 : x
  2. Step 2: Convert to fraction form
    474,841.40/655,343.72 = 270,845.60/x
  3. Step 3: Cross multiply
    474,841.40x = 655,343.72 × 270,845.60
  4. Step 4: Simplify right side
    474,841.40x = 177,496,963,049.63
  5. Step 5: Solve for x
    x = 177,496,963,049.63/474,841.40
  6. Step 6: Final answer
    x = 373,802.63

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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.