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Finding the Fourth Proportional to 372,953.70, 559,430.55 and 322,215.30

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Solution

The fourth proportional to 372,953.70, 559,430.55 and 322,215.30 is: 483,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,953.70 : 559,430.55 = 322,215.30 : x
  2. Step 2: Convert to fraction form
    372,953.70/559,430.55 = 322,215.30/x
  3. Step 3: Cross multiply
    372,953.70x = 559,430.55 × 322,215.30
  4. Step 4: Simplify right side
    372,953.70x = 180,257,082,497.42
  5. Step 5: Solve for x
    x = 180,257,082,497.42/372,953.70
  6. Step 6: Final answer
    x = 483,322.95

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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.