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Finding the Fourth Proportional to 1,249,766.82, 1,724,675.58 and 676,805.22

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Solution

The fourth proportional to 1,249,766.82, 1,724,675.58 and 676,805.22 is: 933,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,766.82 : 1,724,675.58 = 676,805.22 : x
  2. Step 2: Convert to fraction form
    1,249,766.82/1,724,675.58 = 676,805.22/x
  3. Step 3: Cross multiply
    1,249,766.82x = 1,724,675.58 × 676,805.22
  4. Step 4: Simplify right side
    1,249,766.82x = 1,167,269,435,350.53
  5. Step 5: Solve for x
    x = 1,167,269,435,350.53/1,249,766.82
  6. Step 6: Final answer
    x = 933,989.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.