Home / 1,261,338.60-1,892,007.90-512,999.40

Finding the Fourth Proportional to 1,261,338.60, 1,892,007.90 and 512,999.40

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Solution

The fourth proportional to 1,261,338.60, 1,892,007.90 and 512,999.40 is: 769,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,338.60 : 1,892,007.90 = 512,999.40 : x
  2. Step 2: Convert to fraction form
    1,261,338.60/1,892,007.90 = 512,999.40/x
  3. Step 3: Cross multiply
    1,261,338.60x = 1,892,007.90 × 512,999.40
  4. Step 4: Simplify right side
    1,261,338.60x = 970,598,917,495.26
  5. Step 5: Solve for x
    x = 970,598,917,495.26/1,261,338.60
  6. Step 6: Final answer
    x = 769,499.10

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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.