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Finding the Fourth Proportional to 405,522.63, 559,615.39 and 224,230.57

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Solution

The fourth proportional to 405,522.63, 559,615.39 and 224,230.57 is: 309,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,522.63 : 559,615.39 = 224,230.57 : x
  2. Step 2: Convert to fraction form
    405,522.63/559,615.39 = 224,230.57/x
  3. Step 3: Cross multiply
    405,522.63x = 559,615.39 × 224,230.57
  4. Step 4: Simplify right side
    405,522.63x = 125,482,875,920.86
  5. Step 5: Solve for x
    x = 125,482,875,920.86/405,522.63
  6. Step 6: Final answer
    x = 309,434.95

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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.