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Finding the Fourth Proportional to 562,221,365.76, 775,860,076.80 and 323,979,020.64

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Solution

The fourth proportional to 562,221,365.76, 775,860,076.80 and 323,979,020.64 is: 447,087,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,221,365.76 : 775,860,076.80 = 323,979,020.64 : x
  2. Step 2: Convert to fraction form
    562,221,365.76/775,860,076.80 = 323,979,020.64/x
  3. Step 3: Cross multiply
    562,221,365.76x = 775,860,076.80 × 323,979,020.64
  4. Step 4: Simplify right side
    562,221,365.76x = 251,362,387,835,339,168
  5. Step 5: Solve for x
    x = 251,362,387,835,339,168/562,221,365.76
  6. Step 6: Final answer
    x = 447,087,932.16

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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.