Home / 783,415.26-1,081,443.75-529,110.90

Finding the Fourth Proportional to 783,415.26, 1,081,443.75 and 529,110.90

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Solution

The fourth proportional to 783,415.26, 1,081,443.75 and 529,110.90 is: 730,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,415.26 : 1,081,443.75 = 529,110.90 : x
  2. Step 2: Convert to fraction form
    783,415.26/1,081,443.75 = 529,110.90/x
  3. Step 3: Cross multiply
    783,415.26x = 1,081,443.75 × 529,110.90
  4. Step 4: Simplify right side
    783,415.26x = 572,203,675,861.88
  5. Step 5: Solve for x
    x = 572,203,675,861.88/783,415.26
  6. Step 6: Final answer
    x = 730,396.39

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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.