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Finding the Fourth Proportional to 495,189, 683,516.52 and 316,341

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Solution

The fourth proportional to 495,189, 683,516.52 and 316,341 is: 436,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,189 : 683,516.52 = 316,341 : x
  2. Step 2: Convert to fraction form
    495,189/683,516.52 = 316,341/x
  3. Step 3: Cross multiply
    495,189x = 683,516.52 × 316,341
  4. Step 4: Simplify right side
    495,189x = 216,224,299,453.32
  5. Step 5: Solve for x
    x = 216,224,299,453.32/495,189
  6. Step 6: Final answer
    x = 436,650.05

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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.