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Finding the Fourth Proportional to 495,195.90, 683,532.90 and 291,237.90

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Solution

The fourth proportional to 495,195.90, 683,532.90 and 291,237.90 is: 402,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,195.90 : 683,532.90 = 291,237.90 : x
  2. Step 2: Convert to fraction form
    495,195.90/683,532.90 = 291,237.90/x
  3. Step 3: Cross multiply
    495,195.90x = 683,532.90 × 291,237.90
  4. Step 4: Simplify right side
    495,195.90x = 199,070,686,376.91
  5. Step 5: Solve for x
    x = 199,070,686,376.91/495,195.90
  6. Step 6: Final answer
    x = 402,003.91

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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.