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Finding the Fourth Proportional to 405,472.91, 559,530.01 and 224,174.25

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Solution

The fourth proportional to 405,472.91, 559,530.01 and 224,174.25 is: 309,347.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,472.91 : 559,530.01 = 224,174.25 : x
  2. Step 2: Convert to fraction form
    405,472.91/559,530.01 = 224,174.25/x
  3. Step 3: Cross multiply
    405,472.91x = 559,530.01 × 224,174.25
  4. Step 4: Simplify right side
    405,472.91x = 125,432,220,624.46
  5. Step 5: Solve for x
    x = 125,432,220,624.46/405,472.91
  6. Step 6: Final answer
    x = 309,347.97

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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.