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Finding the Fourth Proportional to 403,385.20, 604,156.20 and 237,497.20

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Solution

The fourth proportional to 403,385.20, 604,156.20 and 237,497.20 is: 355,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,385.20 : 604,156.20 = 237,497.20 : x
  2. Step 2: Convert to fraction form
    403,385.20/604,156.20 = 237,497.20/x
  3. Step 3: Cross multiply
    403,385.20x = 604,156.20 × 237,497.20
  4. Step 4: Simplify right side
    403,385.20x = 143,485,405,862.64
  5. Step 5: Solve for x
    x = 143,485,405,862.64/403,385.20
  6. Step 6: Final answer
    x = 355,703.20

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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.