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Finding the Fourth Proportional to 403,486.80, 604,193.40 and 297,733.20

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Solution

The fourth proportional to 403,486.80, 604,193.40 and 297,733.20 is: 445,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,486.80 : 604,193.40 = 297,733.20 : x
  2. Step 2: Convert to fraction form
    403,486.80/604,193.40 = 297,733.20/x
  3. Step 3: Cross multiply
    403,486.80x = 604,193.40 × 297,733.20
  4. Step 4: Simplify right side
    403,486.80x = 179,888,434,400.88
  5. Step 5: Solve for x
    x = 179,888,434,400.88/403,486.80
  6. Step 6: Final answer
    x = 445,834.74

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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.