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Finding the Fourth Proportional to 432,852.70, 649,279.05 and 273,420.40

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Solution

The fourth proportional to 432,852.70, 649,279.05 and 273,420.40 is: 410,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,852.70 : 649,279.05 = 273,420.40 : x
  2. Step 2: Convert to fraction form
    432,852.70/649,279.05 = 273,420.40/x
  3. Step 3: Cross multiply
    432,852.70x = 649,279.05 × 273,420.40
  4. Step 4: Simplify right side
    432,852.70x = 177,526,137,562.62
  5. Step 5: Solve for x
    x = 177,526,137,562.62/432,852.70
  6. Step 6: Final answer
    x = 410,130.60

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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.