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Finding the Fourth Proportional to 682,362.32, 941,657.64 and 380,556.08

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Solution

The fourth proportional to 682,362.32, 941,657.64 and 380,556.08 is: 525,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,362.32 : 941,657.64 = 380,556.08 : x
  2. Step 2: Convert to fraction form
    682,362.32/941,657.64 = 380,556.08/x
  3. Step 3: Cross multiply
    682,362.32x = 941,657.64 × 380,556.08
  4. Step 4: Simplify right side
    682,362.32x = 358,353,540,180.45
  5. Step 5: Solve for x
    x = 358,353,540,180.45/682,362.32
  6. Step 6: Final answer
    x = 525,166.07

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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.