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Finding the Fourth Proportional to 317,952,021.20, 446,153,196.40 and 317,952,021.20

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Solution

The fourth proportional to 317,952,021.20, 446,153,196.40 and 317,952,021.20 is: 446,153,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,952,021.20 : 446,153,196.40 = 317,952,021.20 : x
  2. Step 2: Convert to fraction form
    317,952,021.20/446,153,196.40 = 317,952,021.20/x
  3. Step 3: Cross multiply
    317,952,021.20x = 446,153,196.40 × 317,952,021.20
  4. Step 4: Simplify right side
    317,952,021.20x = 141,855,310,560,220,544
  5. Step 5: Solve for x
    x = 141,855,310,560,220,544/317,952,021.20
  6. Step 6: Final answer
    x = 446,153,196.40

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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.