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Finding the Fourth Proportional to 662,739.76, 914,526.72 and 372,335.50

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Solution

The fourth proportional to 662,739.76, 914,526.72 and 372,335.50 is: 513,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,739.76 : 914,526.72 = 372,335.50 : x
  2. Step 2: Convert to fraction form
    662,739.76/914,526.72 = 372,335.50/x
  3. Step 3: Cross multiply
    662,739.76x = 914,526.72 × 372,335.50
  4. Step 4: Simplify right side
    662,739.76x = 340,510,763,554.56
  5. Step 5: Solve for x
    x = 340,510,763,554.56/662,739.76
  6. Step 6: Final answer
    x = 513,792.57

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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.