Home / 813,525.90-1,122,286.05-511,886.22

Finding the Fourth Proportional to 813,525.90, 1,122,286.05 and 511,886.22

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Solution

The fourth proportional to 813,525.90, 1,122,286.05 and 511,886.22 is: 706,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,525.90 : 1,122,286.05 = 511,886.22 : x
  2. Step 2: Convert to fraction form
    813,525.90/1,122,286.05 = 511,886.22/x
  3. Step 3: Cross multiply
    813,525.90x = 1,122,286.05 × 511,886.22
  4. Step 4: Simplify right side
    813,525.90x = 574,482,764,779.37
  5. Step 5: Solve for x
    x = 574,482,764,779.37/813,525.90
  6. Step 6: Final answer
    x = 706,164.07

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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.