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Finding the Fourth Proportional to 403,411.30, 604,080.15 and 297,657.70

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Solution

The fourth proportional to 403,411.30, 604,080.15 and 297,657.70 is: 445,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,411.30 : 604,080.15 = 297,657.70 : x
  2. Step 2: Convert to fraction form
    403,411.30/604,080.15 = 297,657.70/x
  3. Step 3: Cross multiply
    403,411.30x = 604,080.15 × 297,657.70
  4. Step 4: Simplify right side
    403,411.30x = 179,809,108,064.66
  5. Step 5: Solve for x
    x = 179,809,108,064.66/403,411.30
  6. Step 6: Final answer
    x = 445,721.55

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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.