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Finding the Fourth Proportional to 784,609.11, 1,082,482.11 and 512,833.95

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Solution

The fourth proportional to 784,609.11, 1,082,482.11 and 512,833.95 is: 707,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,609.11 : 1,082,482.11 = 512,833.95 : x
  2. Step 2: Convert to fraction form
    784,609.11/1,082,482.11 = 512,833.95/x
  3. Step 3: Cross multiply
    784,609.11x = 1,082,482.11 × 512,833.95
  4. Step 4: Simplify right side
    784,609.11x = 555,133,576,275.64
  5. Step 5: Solve for x
    x = 555,133,576,275.64/784,609.11
  6. Step 6: Final answer
    x = 707,528.84

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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.