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Finding the Fourth Proportional to 368,001.80, 552,002.70 and 321,345.80

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Solution

The fourth proportional to 368,001.80, 552,002.70 and 321,345.80 is: 482,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,001.80 : 552,002.70 = 321,345.80 : x
  2. Step 2: Convert to fraction form
    368,001.80/552,002.70 = 321,345.80/x
  3. Step 3: Cross multiply
    368,001.80x = 552,002.70 × 321,345.80
  4. Step 4: Simplify right side
    368,001.80x = 177,383,749,233.66
  5. Step 5: Solve for x
    x = 177,383,749,233.66/368,001.80
  6. Step 6: Final answer
    x = 482,018.70

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1.5x scale

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.