Home / 898,742.88-1,240,273.62-511,539.39

Finding the Fourth Proportional to 898,742.88, 1,240,273.62 and 511,539.39

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Solution

The fourth proportional to 898,742.88, 1,240,273.62 and 511,539.39 is: 705,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,742.88 : 1,240,273.62 = 511,539.39 : x
  2. Step 2: Convert to fraction form
    898,742.88/1,240,273.62 = 511,539.39/x
  3. Step 3: Cross multiply
    898,742.88x = 1,240,273.62 × 511,539.39
  4. Step 4: Simplify right side
    898,742.88x = 634,448,811,007.89
  5. Step 5: Solve for x
    x = 634,448,811,007.89/898,742.88
  6. Step 6: Final answer
    x = 705,929.17

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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.