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Finding the Fourth Proportional to 876,735.54, 1,210,170.72 and 514,305.90

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Solution

The fourth proportional to 876,735.54, 1,210,170.72 and 514,305.90 is: 709,903.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,735.54 : 1,210,170.72 = 514,305.90 : x
  2. Step 2: Convert to fraction form
    876,735.54/1,210,170.72 = 514,305.90/x
  3. Step 3: Cross multiply
    876,735.54x = 1,210,170.72 × 514,305.90
  4. Step 4: Simplify right side
    876,735.54x = 622,397,941,303.25
  5. Step 5: Solve for x
    x = 622,397,941,303.25/876,735.54
  6. Step 6: Final answer
    x = 709,903.86

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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.