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Finding the Fourth Proportional to 338,258,422.40, 507,387,633.60 and 338,258,422.40

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Solution

The fourth proportional to 338,258,422.40, 507,387,633.60 and 338,258,422.40 is: 507,387,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,258,422.40 : 507,387,633.60 = 338,258,422.40 : x
  2. Step 2: Convert to fraction form
    338,258,422.40/507,387,633.60 = 338,258,422.40/x
  3. Step 3: Cross multiply
    338,258,422.40x = 507,387,633.60 × 338,258,422.40
  4. Step 4: Simplify right side
    338,258,422.40x = 171,628,140,486,805,216
  5. Step 5: Solve for x
    x = 171,628,140,486,805,216/338,258,422.40
  6. Step 6: Final answer
    x = 507,387,633.60

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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.