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Finding the Fourth Proportional to 449,033,779.20, 629,856,614.40 and 449,033,779.20

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Solution

The fourth proportional to 449,033,779.20, 629,856,614.40 and 449,033,779.20 is: 629,856,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,033,779.20 : 629,856,614.40 = 449,033,779.20 : x
  2. Step 2: Convert to fraction form
    449,033,779.20/629,856,614.40 = 449,033,779.20/x
  3. Step 3: Cross multiply
    449,033,779.20x = 629,856,614.40 × 449,033,779.20
  4. Step 4: Simplify right side
    449,033,779.20x = 282,826,895,918,149,120
  5. Step 5: Solve for x
    x = 282,826,895,918,149,120/449,033,779.20
  6. Step 6: Final answer
    x = 629,856,614.40

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1.5x scale

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.