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Finding the Fourth Proportional to 425,157.84, 636,772.66 and 329,622.39

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Solution

The fourth proportional to 425,157.84, 636,772.66 and 329,622.39 is: 493,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,157.84 : 636,772.66 = 329,622.39 : x
  2. Step 2: Convert to fraction form
    425,157.84/636,772.66 = 329,622.39/x
  3. Step 3: Cross multiply
    425,157.84x = 636,772.66 × 329,622.39
  4. Step 4: Simplify right side
    425,157.84x = 209,894,526,075.86
  5. Step 5: Solve for x
    x = 209,894,526,075.86/425,157.84
  6. Step 6: Final answer
    x = 493,686.12

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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.