Home / 860,154.89-1,187,044.19-472,999.85

Finding the Fourth Proportional to 860,154.89, 1,187,044.19 and 472,999.85

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Solution

The fourth proportional to 860,154.89, 1,187,044.19 and 472,999.85 is: 652,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,154.89 : 1,187,044.19 = 472,999.85 : x
  2. Step 2: Convert to fraction form
    860,154.89/1,187,044.19 = 472,999.85/x
  3. Step 3: Cross multiply
    860,154.89x = 1,187,044.19 × 472,999.85
  4. Step 4: Simplify right side
    860,154.89x = 561,471,715,513.15
  5. Step 5: Solve for x
    x = 561,471,715,513.15/860,154.89
  6. Step 6: Final answer
    x = 652,756.53

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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.