Home / 860,361.73-1,187,291.82-478,385.17

Finding the Fourth Proportional to 860,361.73, 1,187,291.82 and 478,385.17

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Solution

The fourth proportional to 860,361.73, 1,187,291.82 and 478,385.17 is: 660,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,361.73 : 1,187,291.82 = 478,385.17 : x
  2. Step 2: Convert to fraction form
    860,361.73/1,187,291.82 = 478,385.17/x
  3. Step 3: Cross multiply
    860,361.73x = 1,187,291.82 × 478,385.17
  4. Step 4: Simplify right side
    860,361.73x = 567,982,799,150.31
  5. Step 5: Solve for x
    x = 567,982,799,150.31/860,361.73
  6. Step 6: Final answer
    x = 660,167.44

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Double scale
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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.