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Finding the Fourth Proportional to 931,476.28, 1,398,191.56 and 825,538

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Solution

The fourth proportional to 931,476.28, 1,398,191.56 and 825,538 is: 1,239,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,476.28 : 1,398,191.56 = 825,538 : x
  2. Step 2: Convert to fraction form
    931,476.28/1,398,191.56 = 825,538/x
  3. Step 3: Cross multiply
    931,476.28x = 1,398,191.56 × 825,538
  4. Step 4: Simplify right side
    931,476.28x = 1,154,260,264,059.28
  5. Step 5: Solve for x
    x = 1,154,260,264,059.28/931,476.28
  6. Step 6: Final answer
    x = 1,239,173.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.