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Finding the Fourth Proportional to 671,678.96, 926,617.39 and 453,817.51

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Solution

The fourth proportional to 671,678.96, 926,617.39 and 453,817.51 is: 626,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,678.96 : 926,617.39 = 453,817.51 : x
  2. Step 2: Convert to fraction form
    671,678.96/926,617.39 = 453,817.51/x
  3. Step 3: Cross multiply
    671,678.96x = 926,617.39 × 453,817.51
  4. Step 4: Simplify right side
    671,678.96x = 420,515,193,201.41
  5. Step 5: Solve for x
    x = 420,515,193,201.41/671,678.96
  6. Step 6: Final answer
    x = 626,065.76

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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.