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Finding the Fourth Proportional to 403,802.55, 604,974.83 and 235,184.85

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Solution

The fourth proportional to 403,802.55, 604,974.83 and 235,184.85 is: 352,352.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,802.55 : 604,974.83 = 235,184.85 : x
  2. Step 2: Convert to fraction form
    403,802.55/604,974.83 = 235,184.85/x
  3. Step 3: Cross multiply
    403,802.55x = 604,974.83 × 235,184.85
  4. Step 4: Simplify right side
    403,802.55x = 142,280,913,471.40
  5. Step 5: Solve for x
    x = 142,280,913,471.40/403,802.55
  6. Step 6: Final answer
    x = 352,352.69

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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.