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Finding the Fourth Proportional to 384,925.03, 531,175.05 and 212,833.06

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Solution

The fourth proportional to 384,925.03, 531,175.05 and 212,833.06 is: 293,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,925.03 : 531,175.05 = 212,833.06 : x
  2. Step 2: Convert to fraction form
    384,925.03/531,175.05 = 212,833.06/x
  3. Step 3: Cross multiply
    384,925.03x = 531,175.05 × 212,833.06
  4. Step 4: Simplify right side
    384,925.03x = 113,051,611,287.15
  5. Step 5: Solve for x
    x = 113,051,611,287.15/384,925.03
  6. Step 6: Final answer
    x = 293,697.74

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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.