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Finding the Fourth Proportional to 314,245.02, 433,654.47 and 171,002.61

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Solution

The fourth proportional to 314,245.02, 433,654.47 and 171,002.61 is: 235,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,245.02 : 433,654.47 = 171,002.61 : x
  2. Step 2: Convert to fraction form
    314,245.02/433,654.47 = 171,002.61/x
  3. Step 3: Cross multiply
    314,245.02x = 433,654.47 × 171,002.61
  4. Step 4: Simplify right side
    314,245.02x = 74,156,046,208.17
  5. Step 5: Solve for x
    x = 74,156,046,208.17/314,245.02
  6. Step 6: Final answer
    x = 235,981.61

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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.