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Finding the Fourth Proportional to 527,563.82, 727,636.20 and 454,101.32

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Solution

The fourth proportional to 527,563.82, 727,636.20 and 454,101.32 is: 626,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,563.82 : 727,636.20 = 454,101.32 : x
  2. Step 2: Convert to fraction form
    527,563.82/727,636.20 = 454,101.32/x
  3. Step 3: Cross multiply
    527,563.82x = 727,636.20 × 454,101.32
  4. Step 4: Simplify right side
    527,563.82x = 330,420,558,899.78
  5. Step 5: Solve for x
    x = 330,420,558,899.78/527,563.82
  6. Step 6: Final answer
    x = 626,313.91

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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.