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Finding the Fourth Proportional to 828,851.09, 1,143,803.09 and 466,274.84

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Solution

The fourth proportional to 828,851.09, 1,143,803.09 and 466,274.84 is: 643,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,851.09 : 1,143,803.09 = 466,274.84 : x
  2. Step 2: Convert to fraction form
    828,851.09/1,143,803.09 = 466,274.84/x
  3. Step 3: Cross multiply
    828,851.09x = 1,143,803.09 × 466,274.84
  4. Step 4: Simplify right side
    828,851.09x = 533,326,598,227.93
  5. Step 5: Solve for x
    x = 533,326,598,227.93/828,851.09
  6. Step 6: Final answer
    x = 643,452.86

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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.