Home / 919,049.30-1,268,323.14-511,180.70

Finding the Fourth Proportional to 919,049.30, 1,268,323.14 and 511,180.70

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Solution

The fourth proportional to 919,049.30, 1,268,323.14 and 511,180.70 is: 705,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,049.30 : 1,268,323.14 = 511,180.70 : x
  2. Step 2: Convert to fraction form
    919,049.30/1,268,323.14 = 511,180.70/x
  3. Step 3: Cross multiply
    919,049.30x = 1,268,323.14 × 511,180.70
  4. Step 4: Simplify right side
    919,049.30x = 648,342,310,531.40
  5. Step 5: Solve for x
    x = 648,342,310,531.40/919,049.30
  6. Step 6: Final answer
    x = 705,448.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.