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Finding the Fourth Proportional to 702,751.96, 969,790.98 and 380,453.68

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Solution

The fourth proportional to 702,751.96, 969,790.98 and 380,453.68 is: 525,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,751.96 : 969,790.98 = 380,453.68 : x
  2. Step 2: Convert to fraction form
    702,751.96/969,790.98 = 380,453.68/x
  3. Step 3: Cross multiply
    702,751.96x = 969,790.98 × 380,453.68
  4. Step 4: Simplify right side
    702,751.96x = 368,960,547,171.81
  5. Step 5: Solve for x
    x = 368,960,547,171.81/702,751.96
  6. Step 6: Final answer
    x = 525,022.44

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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.