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Finding the Fourth Proportional to 483,387.35, 666,461.25 and 345,732.03

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Solution

The fourth proportional to 483,387.35, 666,461.25 and 345,732.03 is: 476,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,387.35 : 666,461.25 = 345,732.03 : x
  2. Step 2: Convert to fraction form
    483,387.35/666,461.25 = 345,732.03/x
  3. Step 3: Cross multiply
    483,387.35x = 666,461.25 × 345,732.03
  4. Step 4: Simplify right side
    483,387.35x = 230,417,000,878.84
  5. Step 5: Solve for x
    x = 230,417,000,878.84/483,387.35
  6. Step 6: Final answer
    x = 476,671.56

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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.