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Finding the Fourth Proportional to 261,976,883.40, 392,965,325.10 and 261,976,883.40

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Solution

The fourth proportional to 261,976,883.40, 392,965,325.10 and 261,976,883.40 is: 392,965,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,976,883.40 : 392,965,325.10 = 261,976,883.40 : x
  2. Step 2: Convert to fraction form
    261,976,883.40/392,965,325.10 = 261,976,883.40/x
  3. Step 3: Cross multiply
    261,976,883.40x = 392,965,325.10 × 261,976,883.40
  4. Step 4: Simplify right side
    261,976,883.40x = 102,947,831,153,965,808
  5. Step 5: Solve for x
    x = 102,947,831,153,965,808/261,976,883.40
  6. Step 6: Final answer
    x = 392,965,325.10

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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.