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Finding the Fourth Proportional to 423,396.75, 584,288.34 and 251,349.22

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Solution

The fourth proportional to 423,396.75, 584,288.34 and 251,349.22 is: 346,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,396.75 : 584,288.34 = 251,349.22 : x
  2. Step 2: Convert to fraction form
    423,396.75/584,288.34 = 251,349.22/x
  3. Step 3: Cross multiply
    423,396.75x = 584,288.34 × 251,349.22
  4. Step 4: Simplify right side
    423,396.75x = 146,860,418,779.34
  5. Step 5: Solve for x
    x = 146,860,418,779.34/423,396.75
  6. Step 6: Final answer
    x = 346,862.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.