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Finding the Fourth Proportional to 262,009,660.20, 392,258,663.10 and 262,009,660.20

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Solution

The fourth proportional to 262,009,660.20, 392,258,663.10 and 262,009,660.20 is: 392,258,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,009,660.20 : 392,258,663.10 = 262,009,660.20 : x
  2. Step 2: Convert to fraction form
    262,009,660.20/392,258,663.10 = 262,009,660.20/x
  3. Step 3: Cross multiply
    262,009,660.20x = 392,258,663.10 × 262,009,660.20
  4. Step 4: Simplify right side
    262,009,660.20x = 102,775,559,029,337,280
  5. Step 5: Solve for x
    x = 102,775,559,029,337,280/262,009,660.20
  6. Step 6: Final answer
    x = 392,258,663.10

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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.