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Finding the Fourth Proportional to 1,249,758.48, 1,724,664.24 and 676,796.88

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Solution

The fourth proportional to 1,249,758.48, 1,724,664.24 and 676,796.88 is: 933,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,758.48 : 1,724,664.24 = 676,796.88 : x
  2. Step 2: Convert to fraction form
    1,249,758.48/1,724,664.24 = 676,796.88/x
  3. Step 3: Cross multiply
    1,249,758.48x = 1,724,664.24 × 676,796.88
  4. Step 4: Simplify right side
    1,249,758.48x = 1,167,247,376,679.57
  5. Step 5: Solve for x
    x = 1,167,247,376,679.57/1,249,758.48
  6. Step 6: Final answer
    x = 933,978.36

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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.