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Finding the Fourth Proportional to 523,455.21, 722,184.23 and 342,273.20

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Solution

The fourth proportional to 523,455.21, 722,184.23 and 342,273.20 is: 472,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,455.21 : 722,184.23 = 342,273.20 : x
  2. Step 2: Convert to fraction form
    523,455.21/722,184.23 = 342,273.20/x
  3. Step 3: Cross multiply
    523,455.21x = 722,184.23 × 342,273.20
  4. Step 4: Simplify right side
    523,455.21x = 247,184,307,344.59
  5. Step 5: Solve for x
    x = 247,184,307,344.59/523,455.21
  6. Step 6: Final answer
    x = 472,216.73

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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.