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Finding the Fourth Proportional to 405,472.77, 559,503.59 and 224,160.21

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Solution

The fourth proportional to 405,472.77, 559,503.59 and 224,160.21 is: 309,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,472.77 : 559,503.59 = 224,160.21 : x
  2. Step 2: Convert to fraction form
    405,472.77/559,503.59 = 224,160.21/x
  3. Step 3: Cross multiply
    405,472.77x = 559,503.59 × 224,160.21
  4. Step 4: Simplify right side
    405,472.77x = 125,418,441,109.35
  5. Step 5: Solve for x
    x = 125,418,441,109.35/405,472.77
  6. Step 6: Final answer
    x = 309,314.09

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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.