Home / 919,852.12-1,269,437.74-511,980.04

Finding the Fourth Proportional to 919,852.12, 1,269,437.74 and 511,980.04

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Solution

The fourth proportional to 919,852.12, 1,269,437.74 and 511,980.04 is: 706,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,852.12 : 1,269,437.74 = 511,980.04 : x
  2. Step 2: Convert to fraction form
    919,852.12/1,269,437.74 = 511,980.04/x
  3. Step 3: Cross multiply
    919,852.12x = 1,269,437.74 × 511,980.04
  4. Step 4: Simplify right side
    919,852.12x = 649,926,784,902.71
  5. Step 5: Solve for x
    x = 649,926,784,902.71/919,852.12
  6. Step 6: Final answer
    x = 706,555.73

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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.