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Finding the Fourth Proportional to 586,396.97, 809,222.35 and 331,748.16

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Solution

The fourth proportional to 586,396.97, 809,222.35 and 331,748.16 is: 457,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,396.97 : 809,222.35 = 331,748.16 : x
  2. Step 2: Convert to fraction form
    586,396.97/809,222.35 = 331,748.16/x
  3. Step 3: Cross multiply
    586,396.97x = 809,222.35 × 331,748.16
  4. Step 4: Simplify right side
    586,396.97x = 268,458,022,401.45
  5. Step 5: Solve for x
    x = 268,458,022,401.45/586,396.97
  6. Step 6: Final answer
    x = 457,809.36

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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.