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Finding the Fourth Proportional to 637,756,915.20, 956,635,372.80 and 483,568,166.40

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Solution

The fourth proportional to 637,756,915.20, 956,635,372.80 and 483,568,166.40 is: 725,352,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,756,915.20 : 956,635,372.80 = 483,568,166.40 : x
  2. Step 2: Convert to fraction form
    637,756,915.20/956,635,372.80 = 483,568,166.40/x
  3. Step 3: Cross multiply
    637,756,915.20x = 956,635,372.80 × 483,568,166.40
  4. Step 4: Simplify right side
    637,756,915.20x = 462,598,413,138,276,416
  5. Step 5: Solve for x
    x = 462,598,413,138,276,416/637,756,915.20
  6. Step 6: Final answer
    x = 725,352,249.60

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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.