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Finding the Fourth Proportional to 1,073,281.80, 1,609,922.70 and 775,849.80

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Solution

The fourth proportional to 1,073,281.80, 1,609,922.70 and 775,849.80 is: 1,163,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,281.80 : 1,609,922.70 = 775,849.80 : x
  2. Step 2: Convert to fraction form
    1,073,281.80/1,609,922.70 = 775,849.80/x
  3. Step 3: Cross multiply
    1,073,281.80x = 1,609,922.70 × 775,849.80
  4. Step 4: Simplify right side
    1,073,281.80x = 1,249,058,204,810.46
  5. Step 5: Solve for x
    x = 1,249,058,204,810.46/1,073,281.80
  6. Step 6: Final answer
    x = 1,163,774.70

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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.