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Finding the Fourth Proportional to 662,738.76, 914,525.34 and 372,334.50

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Solution

The fourth proportional to 662,738.76, 914,525.34 and 372,334.50 is: 513,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,738.76 : 914,525.34 = 372,334.50 : x
  2. Step 2: Convert to fraction form
    662,738.76/914,525.34 = 372,334.50/x
  3. Step 3: Cross multiply
    662,738.76x = 914,525.34 × 372,334.50
  4. Step 4: Simplify right side
    662,738.76x = 340,509,335,206.23
  5. Step 5: Solve for x
    x = 340,509,335,206.23/662,738.76
  6. Step 6: Final answer
    x = 513,791.19

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Double scale
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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.