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Finding the Fourth Proportional to 495,425.64, 683,686.77 and 269,069.52

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Solution

The fourth proportional to 495,425.64, 683,686.77 and 269,069.52 is: 371,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,425.64 : 683,686.77 = 269,069.52 : x
  2. Step 2: Convert to fraction form
    495,425.64/683,686.77 = 269,069.52/x
  3. Step 3: Cross multiply
    495,425.64x = 683,686.77 × 269,069.52
  4. Step 4: Simplify right side
    495,425.64x = 183,959,271,034.25
  5. Step 5: Solve for x
    x = 183,959,271,034.25/495,425.64
  6. Step 6: Final answer
    x = 371,315.60

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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.