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Finding the Fourth Proportional to 265,798,169.60, 398,697,254.40 and 197,773,721.60

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Solution

The fourth proportional to 265,798,169.60, 398,697,254.40 and 197,773,721.60 is: 296,660,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,798,169.60 : 398,697,254.40 = 197,773,721.60 : x
  2. Step 2: Convert to fraction form
    265,798,169.60/398,697,254.40 = 197,773,721.60/x
  3. Step 3: Cross multiply
    265,798,169.60x = 398,697,254.40 × 197,773,721.60
  4. Step 4: Simplify right side
    265,798,169.60x = 78,851,839,794,389,968
  5. Step 5: Solve for x
    x = 78,851,839,794,389,968/265,798,169.60
  6. Step 6: Final answer
    x = 296,660,582.40

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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.