Home / 439,316.40-658,974.60-289,725.60

Finding the Fourth Proportional to 439,316.40, 658,974.60 and 289,725.60

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Solution

The fourth proportional to 439,316.40, 658,974.60 and 289,725.60 is: 434,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,316.40 : 658,974.60 = 289,725.60 : x
  2. Step 2: Convert to fraction form
    439,316.40/658,974.60 = 289,725.60/x
  3. Step 3: Cross multiply
    439,316.40x = 658,974.60 × 289,725.60
  4. Step 4: Simplify right side
    439,316.40x = 190,921,811,369.76
  5. Step 5: Solve for x
    x = 190,921,811,369.76/439,316.40
  6. Step 6: Final answer
    x = 434,588.40

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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.