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Finding the Fourth Proportional to 353,574.58, 530,361.88 and 291,113.86

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Solution

The fourth proportional to 353,574.58, 530,361.88 and 291,113.86 is: 436,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,574.58 : 530,361.88 = 291,113.86 : x
  2. Step 2: Convert to fraction form
    353,574.58/530,361.88 = 291,113.86/x
  3. Step 3: Cross multiply
    353,574.58x = 530,361.88 × 291,113.86
  4. Step 4: Simplify right side
    353,574.58x = 154,395,694,083.66
  5. Step 5: Solve for x
    x = 154,395,694,083.66/353,574.58
  6. Step 6: Final answer
    x = 436,670.80

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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.