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Finding the Fourth Proportional to 500,619.60, 751,011.30 and 163,562.40

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Solution

The fourth proportional to 500,619.60, 751,011.30 and 163,562.40 is: 245,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,619.60 : 751,011.30 = 163,562.40 : x
  2. Step 2: Convert to fraction form
    500,619.60/751,011.30 = 163,562.40/x
  3. Step 3: Cross multiply
    500,619.60x = 751,011.30 × 163,562.40
  4. Step 4: Simplify right side
    500,619.60x = 122,837,210,655.12
  5. Step 5: Solve for x
    x = 122,837,210,655.12/500,619.60
  6. Step 6: Final answer
    x = 245,370.36

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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.