Home / 860,105.80-1,187,110.52-569,720.80

Finding the Fourth Proportional to 860,105.80, 1,187,110.52 and 569,720.80

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Solution

The fourth proportional to 860,105.80, 1,187,110.52 and 569,720.80 is: 786,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,105.80 : 1,187,110.52 = 569,720.80 : x
  2. Step 2: Convert to fraction form
    860,105.80/1,187,110.52 = 569,720.80/x
  3. Step 3: Cross multiply
    860,105.80x = 1,187,110.52 × 569,720.80
  4. Step 4: Simplify right side
    860,105.80x = 676,321,555,142.82
  5. Step 5: Solve for x
    x = 676,321,555,142.82/860,105.80
  6. Step 6: Final answer
    x = 786,323.68

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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.