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Finding the Fourth Proportional to 432,661.20, 596,228.94 and 311,573.70

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Solution

The fourth proportional to 432,661.20, 596,228.94 and 311,573.70 is: 429,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,661.20 : 596,228.94 = 311,573.70 : x
  2. Step 2: Convert to fraction form
    432,661.20/596,228.94 = 311,573.70/x
  3. Step 3: Cross multiply
    432,661.20x = 596,228.94 × 311,573.70
  4. Step 4: Simplify right side
    432,661.20x = 185,769,256,882.88
  5. Step 5: Solve for x
    x = 185,769,256,882.88/432,661.20
  6. Step 6: Final answer
    x = 429,364.26

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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.