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Finding the Fourth Proportional to 403,275.90, 604,913.85 and 347,179.35

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Solution

The fourth proportional to 403,275.90, 604,913.85 and 347,179.35 is: 520,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,275.90 : 604,913.85 = 347,179.35 : x
  2. Step 2: Convert to fraction form
    403,275.90/604,913.85 = 347,179.35/x
  3. Step 3: Cross multiply
    403,275.90x = 604,913.85 × 347,179.35
  4. Step 4: Simplify right side
    403,275.90x = 210,013,597,249.00
  5. Step 5: Solve for x
    x = 210,013,597,249.00/403,275.90
  6. Step 6: Final answer
    x = 520,769.03

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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.