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Finding the Fourth Proportional to 495,812.90, 696,004.30 and 495,812.90

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Solution

The fourth proportional to 495,812.90, 696,004.30 and 495,812.90 is: 696,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,812.90 : 696,004.30 = 495,812.90 : x
  2. Step 2: Convert to fraction form
    495,812.90/696,004.30 = 495,812.90/x
  3. Step 3: Cross multiply
    495,812.90x = 696,004.30 × 495,812.90
  4. Step 4: Simplify right side
    495,812.90x = 345,087,910,395.47
  5. Step 5: Solve for x
    x = 345,087,910,395.47/495,812.90
  6. Step 6: Final answer
    x = 696,004.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.