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Finding the Fourth Proportional to 2,652,208,728.10, 3,978,313,092.15 and 904,830,720.10

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Solution

The fourth proportional to 2,652,208,728.10, 3,978,313,092.15 and 904,830,720.10 is: 1,357,246,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,208,728.10 : 3,978,313,092.15 = 904,830,720.10 : x
  2. Step 2: Convert to fraction form
    2,652,208,728.10/3,978,313,092.15 = 904,830,720.10/x
  3. Step 3: Cross multiply
    2,652,208,728.10x = 3,978,313,092.15 × 904,830,720.10
  4. Step 4: Simplify right side
    2,652,208,728.10x = 3,599,699,899,953,342,464
  5. Step 5: Solve for x
    x = 3,599,699,899,953,342,464/2,652,208,728.10
  6. Step 6: Final answer
    x = 1,357,246,080.15

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1.5x scale

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.