Home / 679,878.32-938,233.96-373,986.05

Finding the Fourth Proportional to 679,878.32, 938,233.96 and 373,986.05

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Solution

The fourth proportional to 679,878.32, 938,233.96 and 373,986.05 is: 516,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,878.32 : 938,233.96 = 373,986.05 : x
  2. Step 2: Convert to fraction form
    679,878.32/938,233.96 = 373,986.05/x
  3. Step 3: Cross multiply
    679,878.32x = 938,233.96 × 373,986.05
  4. Step 4: Simplify right side
    679,878.32x = 350,886,407,050.12
  5. Step 5: Solve for x
    x = 350,886,407,050.12/679,878.32
  6. Step 6: Final answer
    x = 516,101.78

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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.