Home / 934,178.82-1,288,899.96-526,137.80

Finding the Fourth Proportional to 934,178.82, 1,288,899.96 and 526,137.80

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Solution

The fourth proportional to 934,178.82, 1,288,899.96 and 526,137.80 is: 725,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,178.82 : 1,288,899.96 = 526,137.80 : x
  2. Step 2: Convert to fraction form
    934,178.82/1,288,899.96 = 526,137.80/x
  3. Step 3: Cross multiply
    934,178.82x = 1,288,899.96 × 526,137.80
  4. Step 4: Simplify right side
    934,178.82x = 678,138,989,374.49
  5. Step 5: Solve for x
    x = 678,138,989,374.49/934,178.82
  6. Step 6: Final answer
    x = 725,919.89

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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.