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Finding the Fourth Proportional to 637,968,020.40, 956,952,030.60 and 347,730,375.60

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Solution

The fourth proportional to 637,968,020.40, 956,952,030.60 and 347,730,375.60 is: 521,595,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,968,020.40 : 956,952,030.60 = 347,730,375.60 : x
  2. Step 2: Convert to fraction form
    637,968,020.40/956,952,030.60 = 347,730,375.60/x
  3. Step 3: Cross multiply
    637,968,020.40x = 956,952,030.60 × 347,730,375.60
  4. Step 4: Simplify right side
    637,968,020.40x = 332,761,289,031,720,704
  5. Step 5: Solve for x
    x = 332,761,289,031,720,704/637,968,020.40
  6. Step 6: Final answer
    x = 521,595,563.40

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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.