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Finding the Fourth Proportional to 336,993,365.60, 505,490,048.40 and 191,370,658.40

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Solution

The fourth proportional to 336,993,365.60, 505,490,048.40 and 191,370,658.40 is: 287,055,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,993,365.60 : 505,490,048.40 = 191,370,658.40 : x
  2. Step 2: Convert to fraction form
    336,993,365.60/505,490,048.40 = 191,370,658.40/x
  3. Step 3: Cross multiply
    336,993,365.60x = 505,490,048.40 × 191,370,658.40
  4. Step 4: Simplify right side
    336,993,365.60x = 96,735,963,376,955,872
  5. Step 5: Solve for x
    x = 96,735,963,376,955,872/336,993,365.60
  6. Step 6: Final answer
    x = 287,055,987.60

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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.