Home / 496,077,019.20-744,115,528.80-388,463,630.40

Finding the Fourth Proportional to 496,077,019.20, 744,115,528.80 and 388,463,630.40

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Solution

The fourth proportional to 496,077,019.20, 744,115,528.80 and 388,463,630.40 is: 582,695,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,077,019.20 : 744,115,528.80 = 388,463,630.40 : x
  2. Step 2: Convert to fraction form
    496,077,019.20/744,115,528.80 = 388,463,630.40/x
  3. Step 3: Cross multiply
    496,077,019.20x = 744,115,528.80 × 388,463,630.40
  4. Step 4: Simplify right side
    496,077,019.20x = 289,061,819,754,663,744
  5. Step 5: Solve for x
    x = 289,061,819,754,663,744/496,077,019.20
  6. Step 6: Final answer
    x = 582,695,445.60

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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.