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Finding the Fourth Proportional to 514,887.39, 772,382.97 and 135,834.32

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Solution

The fourth proportional to 514,887.39, 772,382.97 and 135,834.32 is: 203,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,887.39 : 772,382.97 = 135,834.32 : x
  2. Step 2: Convert to fraction form
    514,887.39/772,382.97 = 135,834.32/x
  3. Step 3: Cross multiply
    514,887.39x = 772,382.97 × 135,834.32
  4. Step 4: Simplify right side
    514,887.39x = 104,916,111,647.62
  5. Step 5: Solve for x
    x = 104,916,111,647.62/514,887.39
  6. Step 6: Final answer
    x = 203,765.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.