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Finding the Fourth Proportional to 311,534.00, 429,925.78 and 173,716.10

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Solution

The fourth proportional to 311,534.00, 429,925.78 and 173,716.10 is: 239,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,534.00 : 429,925.78 = 173,716.10 : x
  2. Step 2: Convert to fraction form
    311,534.00/429,925.78 = 173,716.10/x
  3. Step 3: Cross multiply
    311,534.00x = 429,925.78 × 173,716.10
  4. Step 4: Simplify right side
    311,534.00x = 74,685,028,493.64
  5. Step 5: Solve for x
    x = 74,685,028,493.64/311,534.00
  6. Step 6: Final answer
    x = 239,733.16

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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.