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Finding the Fourth Proportional to 403,900.70, 605,851.05 and 364,534.70

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Solution

The fourth proportional to 403,900.70, 605,851.05 and 364,534.70 is: 546,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,900.70 : 605,851.05 = 364,534.70 : x
  2. Step 2: Convert to fraction form
    403,900.70/605,851.05 = 364,534.70/x
  3. Step 3: Cross multiply
    403,900.70x = 605,851.05 × 364,534.70
  4. Step 4: Simplify right side
    403,900.70x = 220,853,730,756.44
  5. Step 5: Solve for x
    x = 220,853,730,756.44/403,900.70
  6. Step 6: Final answer
    x = 546,802.05

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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.