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Finding the Fourth Proportional to 450,698.31, 621,963.81 and 246,762.18

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Solution

The fourth proportional to 450,698.31, 621,963.81 and 246,762.18 is: 340,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,698.31 : 621,963.81 = 246,762.18 : x
  2. Step 2: Convert to fraction form
    450,698.31/621,963.81 = 246,762.18/x
  3. Step 3: Cross multiply
    450,698.31x = 621,963.81 × 246,762.18
  4. Step 4: Simplify right side
    450,698.31x = 153,477,145,636.71
  5. Step 5: Solve for x
    x = 153,477,145,636.71/450,698.31
  6. Step 6: Final answer
    x = 340,531.89

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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.