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Finding the Fourth Proportional to 610,812.65, 842,961.32 and 352,700.48

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Solution

The fourth proportional to 610,812.65, 842,961.32 and 352,700.48 is: 486,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,812.65 : 842,961.32 = 352,700.48 : x
  2. Step 2: Convert to fraction form
    610,812.65/842,961.32 = 352,700.48/x
  3. Step 3: Cross multiply
    610,812.65x = 842,961.32 × 352,700.48
  4. Step 4: Simplify right side
    610,812.65x = 297,312,856,207.13
  5. Step 5: Solve for x
    x = 297,312,856,207.13/610,812.65
  6. Step 6: Final answer
    x = 486,749.67

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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.