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Finding the Fourth Proportional to 634,563.38, 875,555.81 and 376,309.09

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Solution

The fourth proportional to 634,563.38, 875,555.81 and 376,309.09 is: 519,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,563.38 : 875,555.81 = 376,309.09 : x
  2. Step 2: Convert to fraction form
    634,563.38/875,555.81 = 376,309.09/x
  3. Step 3: Cross multiply
    634,563.38x = 875,555.81 × 376,309.09
  4. Step 4: Simplify right side
    634,563.38x = 329,479,609,671.00
  5. Step 5: Solve for x
    x = 329,479,609,671.00/634,563.38
  6. Step 6: Final answer
    x = 519,222.54

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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.