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Finding the Fourth Proportional to 404,362,891.60, 606,544,337.40 and 162,199,589.20

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Solution

The fourth proportional to 404,362,891.60, 606,544,337.40 and 162,199,589.20 is: 243,299,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,362,891.60 : 606,544,337.40 = 162,199,589.20 : x
  2. Step 2: Convert to fraction form
    404,362,891.60/606,544,337.40 = 162,199,589.20/x
  3. Step 3: Cross multiply
    404,362,891.60x = 606,544,337.40 × 162,199,589.20
  4. Step 4: Simplify right side
    404,362,891.60x = 98,381,242,357,866,192
  5. Step 5: Solve for x
    x = 98,381,242,357,866,192/404,362,891.60
  6. Step 6: Final answer
    x = 243,299,383.80

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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.