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Finding the Fourth Proportional to 538,173,618.60, 753,953,249.40 and 538,173,618.60

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Solution

The fourth proportional to 538,173,618.60, 753,953,249.40 and 538,173,618.60 is: 753,953,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,173,618.60 : 753,953,249.40 = 538,173,618.60 : x
  2. Step 2: Convert to fraction form
    538,173,618.60/753,953,249.40 = 538,173,618.60/x
  3. Step 3: Cross multiply
    538,173,618.60x = 753,953,249.40 × 538,173,618.60
  4. Step 4: Simplify right side
    538,173,618.60x = 405,757,748,484,826,304
  5. Step 5: Solve for x
    x = 405,757,748,484,826,304/538,173,618.60
  6. Step 6: Final answer
    x = 753,953,249.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.