Home / 826,170.40-1,139,693.48-539,858.08

Finding the Fourth Proportional to 826,170.40, 1,139,693.48 and 539,858.08

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Solution

The fourth proportional to 826,170.40, 1,139,693.48 and 539,858.08 is: 744,728.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,170.40 : 1,139,693.48 = 539,858.08 : x
  2. Step 2: Convert to fraction form
    826,170.40/1,139,693.48 = 539,858.08/x
  3. Step 3: Cross multiply
    826,170.40x = 1,139,693.48 × 539,858.08
  4. Step 4: Simplify right side
    826,170.40x = 615,272,733,901.32
  5. Step 5: Solve for x
    x = 615,272,733,901.32/826,170.40
  6. Step 6: Final answer
    x = 744,728.61

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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.