Home / 783,341.37-1,081,013.83-493,144.94

Finding the Fourth Proportional to 783,341.37, 1,081,013.83 and 493,144.94

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Solution

The fourth proportional to 783,341.37, 1,081,013.83 and 493,144.94 is: 680,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,341.37 : 1,081,013.83 = 493,144.94 : x
  2. Step 2: Convert to fraction form
    783,341.37/1,081,013.83 = 493,144.94/x
  3. Step 3: Cross multiply
    783,341.37x = 1,081,013.83 × 493,144.94
  4. Step 4: Simplify right side
    783,341.37x = 533,096,501,804.19
  5. Step 5: Solve for x
    x = 533,096,501,804.19/783,341.37
  6. Step 6: Final answer
    x = 680,541.74

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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.