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Finding the Fourth Proportional to 265,793,214.80, 398,689,822.20 and 265,793,214.80

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Solution

The fourth proportional to 265,793,214.80, 398,689,822.20 and 265,793,214.80 is: 398,689,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,793,214.80 : 398,689,822.20 = 265,793,214.80 : x
  2. Step 2: Convert to fraction form
    265,793,214.80/398,689,822.20 = 265,793,214.80/x
  3. Step 3: Cross multiply
    265,793,214.80x = 398,689,822.20 × 265,793,214.80
  4. Step 4: Simplify right side
    265,793,214.80x = 105,969,049,550,578,416
  5. Step 5: Solve for x
    x = 105,969,049,550,578,416/265,793,214.80
  6. Step 6: Final answer
    x = 398,689,822.20

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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.