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Finding the Fourth Proportional to 353,767.02, 530,207.62 and 278,590.25

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Solution

The fourth proportional to 353,767.02, 530,207.62 and 278,590.25 is: 417,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,767.02 : 530,207.62 = 278,590.25 : x
  2. Step 2: Convert to fraction form
    353,767.02/530,207.62 = 278,590.25/x
  3. Step 3: Cross multiply
    353,767.02x = 530,207.62 × 278,590.25
  4. Step 4: Simplify right side
    353,767.02x = 147,710,672,014.75
  5. Step 5: Solve for x
    x = 147,710,672,014.75/353,767.02
  6. Step 6: Final answer
    x = 417,536.58

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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.