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Finding the Fourth Proportional to 403,493.80, 604,203.90 and 297,740.20

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Solution

The fourth proportional to 403,493.80, 604,203.90 and 297,740.20 is: 445,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,493.80 : 604,203.90 = 297,740.20 : x
  2. Step 2: Convert to fraction form
    403,493.80/604,203.90 = 297,740.20/x
  3. Step 3: Cross multiply
    403,493.80x = 604,203.90 × 297,740.20
  4. Step 4: Simplify right side
    403,493.80x = 179,895,790,026.78
  5. Step 5: Solve for x
    x = 179,895,790,026.78/403,493.80
  6. Step 6: Final answer
    x = 445,845.24

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1.5x scale

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.