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Finding the Fourth Proportional to 301,809,619.20, 452,714,428.80 and 219,542,552.40

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Solution

The fourth proportional to 301,809,619.20, 452,714,428.80 and 219,542,552.40 is: 329,313,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,809,619.20 : 452,714,428.80 = 219,542,552.40 : x
  2. Step 2: Convert to fraction form
    301,809,619.20/452,714,428.80 = 219,542,552.40/x
  3. Step 3: Cross multiply
    301,809,619.20x = 452,714,428.80 × 219,542,552.40
  4. Step 4: Simplify right side
    301,809,619.20x = 99,390,081,207,060,080
  5. Step 5: Solve for x
    x = 99,390,081,207,060,080/301,809,619.20
  6. Step 6: Final answer
    x = 329,313,828.60

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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.