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Finding the Fourth Proportional to 313,157.64, 432,151.95 and 190,605.72

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Solution

The fourth proportional to 313,157.64, 432,151.95 and 190,605.72 is: 263,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,157.64 : 432,151.95 = 190,605.72 : x
  2. Step 2: Convert to fraction form
    313,157.64/432,151.95 = 190,605.72/x
  3. Step 3: Cross multiply
    313,157.64x = 432,151.95 × 190,605.72
  4. Step 4: Simplify right side
    313,157.64x = 82,370,633,579.15
  5. Step 5: Solve for x
    x = 82,370,633,579.15/313,157.64
  6. Step 6: Final answer
    x = 263,032.49

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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.