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Finding the Fourth Proportional to 1,784,476.80, 2,677,622.40 and 1,185,854.40

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Solution

The fourth proportional to 1,784,476.80, 2,677,622.40 and 1,185,854.40 is: 1,779,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,476.80 : 2,677,622.40 = 1,185,854.40 : x
  2. Step 2: Convert to fraction form
    1,784,476.80/2,677,622.40 = 1,185,854.40/x
  3. Step 3: Cross multiply
    1,784,476.80x = 2,677,622.40 × 1,185,854.40
  4. Step 4: Simplify right side
    1,784,476.80x = 3,175,270,304,578.56
  5. Step 5: Solve for x
    x = 3,175,270,304,578.56/1,784,476.80
  6. Step 6: Final answer
    x = 1,779,384.47

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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.