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Finding the Fourth Proportional to 353,505.58, 530,258.37 and 291,044.86

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Solution

The fourth proportional to 353,505.58, 530,258.37 and 291,044.86 is: 436,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,505.58 : 530,258.37 = 291,044.86 : x
  2. Step 2: Convert to fraction form
    353,505.58/530,258.37 = 291,044.86/x
  3. Step 3: Cross multiply
    353,505.58x = 530,258.37 × 291,044.86
  4. Step 4: Simplify right side
    353,505.58x = 154,328,973,060.48
  5. Step 5: Solve for x
    x = 154,328,973,060.48/353,505.58
  6. Step 6: Final answer
    x = 436,567.29

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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.