Home / 657,176.60-985,764.90-432,790.40

Finding the Fourth Proportional to 657,176.60, 985,764.90 and 432,790.40

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Solution

The fourth proportional to 657,176.60, 985,764.90 and 432,790.40 is: 649,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,176.60 : 985,764.90 = 432,790.40 : x
  2. Step 2: Convert to fraction form
    657,176.60/985,764.90 = 432,790.40/x
  3. Step 3: Cross multiply
    657,176.60x = 985,764.90 × 432,790.40
  4. Step 4: Simplify right side
    657,176.60x = 426,629,585,376.96
  5. Step 5: Solve for x
    x = 426,629,585,376.96/657,176.60
  6. Step 6: Final answer
    x = 649,185.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.