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Finding the Fourth Proportional to 450,699.31, 621,965.19 and 246,763.18

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Solution

The fourth proportional to 450,699.31, 621,965.19 and 246,763.18 is: 340,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,699.31 : 621,965.19 = 246,763.18 : x
  2. Step 2: Convert to fraction form
    450,699.31/621,965.19 = 246,763.18/x
  3. Step 3: Cross multiply
    450,699.31x = 621,965.19 × 246,763.18
  4. Step 4: Simplify right side
    450,699.31x = 153,478,108,133.70
  5. Step 5: Solve for x
    x = 153,478,108,133.70/450,699.31
  6. Step 6: Final answer
    x = 340,533.27

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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.