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Finding the Fourth Proportional to 650,495.11, 897,690.32 and 360,111.49

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Solution

The fourth proportional to 650,495.11, 897,690.32 and 360,111.49 is: 496,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,495.11 : 897,690.32 = 360,111.49 : x
  2. Step 2: Convert to fraction form
    650,495.11/897,690.32 = 360,111.49/x
  3. Step 3: Cross multiply
    650,495.11x = 897,690.32 × 360,111.49
  4. Step 4: Simplify right side
    650,495.11x = 323,268,594,648.99
  5. Step 5: Solve for x
    x = 323,268,594,648.99/650,495.11
  6. Step 6: Final answer
    x = 496,957.76

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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.