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Finding the Fourth Proportional to 465,889.12, 642,926.76 and 264,685.12

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Solution

The fourth proportional to 465,889.12, 642,926.76 and 264,685.12 is: 365,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,889.12 : 642,926.76 = 264,685.12 : x
  2. Step 2: Convert to fraction form
    465,889.12/642,926.76 = 264,685.12/x
  3. Step 3: Cross multiply
    465,889.12x = 642,926.76 × 264,685.12
  4. Step 4: Simplify right side
    465,889.12x = 170,173,146,621.81
  5. Step 5: Solve for x
    x = 170,173,146,621.81/465,889.12
  6. Step 6: Final answer
    x = 365,265.34

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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.