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Finding the Fourth Proportional to 628,687.23, 865,935.60 and 483,214.82

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Solution

The fourth proportional to 628,687.23, 865,935.60 and 483,214.82 is: 665,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,687.23 : 865,935.60 = 483,214.82 : x
  2. Step 2: Convert to fraction form
    628,687.23/865,935.60 = 483,214.82/x
  3. Step 3: Cross multiply
    628,687.23x = 865,935.60 × 483,214.82
  4. Step 4: Simplify right side
    628,687.23x = 418,432,910,755.91
  5. Step 5: Solve for x
    x = 418,432,910,755.91/628,687.23
  6. Step 6: Final answer
    x = 665,566.10

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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.