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Finding the Fourth Proportional to 1,793,787.80, 2,690,681.70 and 1,695,810.20

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Solution

The fourth proportional to 1,793,787.80, 2,690,681.70 and 1,695,810.20 is: 2,543,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793,787.80 : 2,690,681.70 = 1,695,810.20 : x
  2. Step 2: Convert to fraction form
    1,793,787.80/2,690,681.70 = 1,695,810.20/x
  3. Step 3: Cross multiply
    1,793,787.80x = 2,690,681.70 × 1,695,810.20
  4. Step 4: Simplify right side
    1,793,787.80x = 4,562,885,471,813.34
  5. Step 5: Solve for x
    x = 4,562,885,471,813.34/1,793,787.80
  6. Step 6: Final answer
    x = 2,543,715.30

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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.