Home / 783,408.75-1,081,434.77-529,104.39

Finding the Fourth Proportional to 783,408.75, 1,081,434.77 and 529,104.39

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Solution

The fourth proportional to 783,408.75, 1,081,434.77 and 529,104.39 is: 730,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,408.75 : 1,081,434.77 = 529,104.39 : x
  2. Step 2: Convert to fraction form
    783,408.75/1,081,434.77 = 529,104.39/x
  3. Step 3: Cross multiply
    783,408.75x = 1,081,434.77 × 529,104.39
  4. Step 4: Simplify right side
    783,408.75x = 572,191,884,305.64
  5. Step 5: Solve for x
    x = 572,191,884,305.64/783,408.75
  6. Step 6: Final answer
    x = 730,387.41

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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.