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Finding the Fourth Proportional to 538,099,410.40, 805,873,657.20 and 538,099,410.40

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Solution

The fourth proportional to 538,099,410.40, 805,873,657.20 and 538,099,410.40 is: 805,873,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,099,410.40 : 805,873,657.20 = 538,099,410.40 : x
  2. Step 2: Convert to fraction form
    538,099,410.40/805,873,657.20 = 538,099,410.40/x
  3. Step 3: Cross multiply
    538,099,410.40x = 805,873,657.20 × 538,099,410.40
  4. Step 4: Simplify right side
    538,099,410.40x = 433,640,139,796,211,712
  5. Step 5: Solve for x
    x = 433,640,139,796,211,712/538,099,410.40
  6. Step 6: Final answer
    x = 805,873,657.20

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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.