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Finding the Fourth Proportional to 1,835,422.40, 2,750,444.40 and 1,645,882.40

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Solution

The fourth proportional to 1,835,422.40, 2,750,444.40 and 1,645,882.40 is: 2,466,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835,422.40 : 2,750,444.40 = 1,645,882.40 : x
  2. Step 2: Convert to fraction form
    1,835,422.40/2,750,444.40 = 1,645,882.40/x
  3. Step 3: Cross multiply
    1,835,422.40x = 2,750,444.40 × 1,645,882.40
  4. Step 4: Simplify right side
    1,835,422.40x = 4,526,908,030,138.56
  5. Step 5: Solve for x
    x = 4,526,908,030,138.56/1,835,422.40
  6. Step 6: Final answer
    x = 2,466,412.11

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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.