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Finding the Fourth Proportional to 854,573.80, 1,281,058.80 and 322,452.40

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Solution

The fourth proportional to 854,573.80, 1,281,058.80 and 322,452.40 is: 483,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,573.80 : 1,281,058.80 = 322,452.40 : x
  2. Step 2: Convert to fraction form
    854,573.80/1,281,058.80 = 322,452.40/x
  3. Step 3: Cross multiply
    854,573.80x = 1,281,058.80 × 322,452.40
  4. Step 4: Simplify right side
    854,573.80x = 413,080,484,601.12
  5. Step 5: Solve for x
    x = 413,080,484,601.12/854,573.80
  6. Step 6: Final answer
    x = 483,376.02

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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.