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Finding the Fourth Proportional to 617,980.20, 926,279.10 and 351,868.20

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Solution

The fourth proportional to 617,980.20, 926,279.10 and 351,868.20 is: 527,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,980.20 : 926,279.10 = 351,868.20 : x
  2. Step 2: Convert to fraction form
    617,980.20/926,279.10 = 351,868.20/x
  3. Step 3: Cross multiply
    617,980.20x = 926,279.10 × 351,868.20
  4. Step 4: Simplify right side
    617,980.20x = 325,928,159,614.62
  5. Step 5: Solve for x
    x = 325,928,159,614.62/617,980.20
  6. Step 6: Final answer
    x = 527,408.74

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1.5x scale

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.