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Finding the Fourth Proportional to 401,236,421.40, 601,854,632.10 and 401,236,421.40

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Solution

The fourth proportional to 401,236,421.40, 601,854,632.10 and 401,236,421.40 is: 601,854,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,236,421.40 : 601,854,632.10 = 401,236,421.40 : x
  2. Step 2: Convert to fraction form
    401,236,421.40/601,854,632.10 = 401,236,421.40/x
  3. Step 3: Cross multiply
    401,236,421.40x = 601,854,632.10 × 401,236,421.40
  4. Step 4: Simplify right side
    401,236,421.40x = 241,485,998,786,817,568
  5. Step 5: Solve for x
    x = 241,485,998,786,817,568/401,236,421.40
  6. Step 6: Final answer
    x = 601,854,632.10

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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.