Home / 783,408.31-1,081,434.16-529,103.95

Finding the Fourth Proportional to 783,408.31, 1,081,434.16 and 529,103.95

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Solution

The fourth proportional to 783,408.31, 1,081,434.16 and 529,103.95 is: 730,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,408.31 : 1,081,434.16 = 529,103.95 : x
  2. Step 2: Convert to fraction form
    783,408.31/1,081,434.16 = 529,103.95/x
  3. Step 3: Cross multiply
    783,408.31x = 1,081,434.16 × 529,103.95
  4. Step 4: Simplify right side
    783,408.31x = 572,191,083,678.73
  5. Step 5: Solve for x
    x = 572,191,083,678.73/783,408.31
  6. Step 6: Final answer
    x = 730,386.80

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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.