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Finding the Fourth Proportional to 432,851.70, 649,277.55 and 273,419.40

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Solution

The fourth proportional to 432,851.70, 649,277.55 and 273,419.40 is: 410,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,851.70 : 649,277.55 = 273,419.40 : x
  2. Step 2: Convert to fraction form
    432,851.70/649,277.55 = 273,419.40/x
  3. Step 3: Cross multiply
    432,851.70x = 649,277.55 × 273,419.40
  4. Step 4: Simplify right side
    432,851.70x = 177,525,078,154.47
  5. Step 5: Solve for x
    x = 177,525,078,154.47/432,851.70
  6. Step 6: Final answer
    x = 410,129.10

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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.