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Finding the Fourth Proportional to 403,777.20, 605,665.80 and 373,364.40

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Solution

The fourth proportional to 403,777.20, 605,665.80 and 373,364.40 is: 560,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,777.20 : 605,665.80 = 373,364.40 : x
  2. Step 2: Convert to fraction form
    403,777.20/605,665.80 = 373,364.40/x
  3. Step 3: Cross multiply
    403,777.20x = 605,665.80 × 373,364.40
  4. Step 4: Simplify right side
    403,777.20x = 226,134,048,017.52
  5. Step 5: Solve for x
    x = 226,134,048,017.52/403,777.20
  6. Step 6: Final answer
    x = 560,046.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.