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Finding the Fourth Proportional to 523,605.60, 722,347.56 and 329,895.72

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Solution

The fourth proportional to 523,605.60, 722,347.56 and 329,895.72 is: 455,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,605.60 : 722,347.56 = 329,895.72 : x
  2. Step 2: Convert to fraction form
    523,605.60/722,347.56 = 329,895.72/x
  3. Step 3: Cross multiply
    523,605.60x = 722,347.56 × 329,895.72
  4. Step 4: Simplify right side
    523,605.60x = 238,299,368,396.44
  5. Step 5: Solve for x
    x = 238,299,368,396.44/523,605.60
  6. Step 6: Final answer
    x = 455,112.34

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1.5x scale

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.