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Finding the Fourth Proportional to 495,558.29, 683,812.41 and 291,564.34

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Solution

The fourth proportional to 495,558.29, 683,812.41 and 291,564.34 is: 402,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,558.29 : 683,812.41 = 291,564.34 : x
  2. Step 2: Convert to fraction form
    495,558.29/683,812.41 = 291,564.34/x
  3. Step 3: Cross multiply
    495,558.29x = 683,812.41 × 291,564.34
  4. Step 4: Simplify right side
    495,558.29x = 199,375,312,295.93
  5. Step 5: Solve for x
    x = 199,375,312,295.93/495,558.29
  6. Step 6: Final answer
    x = 402,324.65

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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.