Home / 638,030.82-880,652.33-376,615.98

Finding the Fourth Proportional to 638,030.82, 880,652.33 and 376,615.98

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Solution

The fourth proportional to 638,030.82, 880,652.33 and 376,615.98 is: 519,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,030.82 : 880,652.33 = 376,615.98 : x
  2. Step 2: Convert to fraction form
    638,030.82/880,652.33 = 376,615.98/x
  3. Step 3: Cross multiply
    638,030.82x = 880,652.33 × 376,615.98
  4. Step 4: Simplify right side
    638,030.82x = 331,667,738,419.15
  5. Step 5: Solve for x
    x = 331,667,738,419.15/638,030.82
  6. Step 6: Final answer
    x = 519,830.28

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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.