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Finding the Fourth Proportional to 1,249,693.68, 1,724,578.20 and 676,734.48

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Solution

The fourth proportional to 1,249,693.68, 1,724,578.20 and 676,734.48 is: 933,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,693.68 : 1,724,578.20 = 676,734.48 : x
  2. Step 2: Convert to fraction form
    1,249,693.68/1,724,578.20 = 676,734.48/x
  3. Step 3: Cross multiply
    1,249,693.68x = 1,724,578.20 × 676,734.48
  4. Step 4: Simplify right side
    1,249,693.68x = 1,167,081,531,396.34
  5. Step 5: Solve for x
    x = 1,167,081,531,396.34/1,249,693.68
  6. Step 6: Final answer
    x = 933,894.08

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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.