Home / 1,189,902.24-1,785,562.56-431,802.90

Finding the Fourth Proportional to 1,189,902.24, 1,785,562.56 and 431,802.90

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Solution

The fourth proportional to 1,189,902.24, 1,785,562.56 and 431,802.90 is: 647,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,902.24 : 1,785,562.56 = 431,802.90 : x
  2. Step 2: Convert to fraction form
    1,189,902.24/1,785,562.56 = 431,802.90/x
  3. Step 3: Cross multiply
    1,189,902.24x = 1,785,562.56 × 431,802.90
  4. Step 4: Simplify right side
    1,189,902.24x = 771,011,091,539.42
  5. Step 5: Solve for x
    x = 771,011,091,539.42/1,189,902.24
  6. Step 6: Final answer
    x = 647,961.71

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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.