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Finding the Fourth Proportional to 368,368.70, 552,553.05 and 256,175.60

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Solution

The fourth proportional to 368,368.70, 552,553.05 and 256,175.60 is: 384,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,368.70 : 552,553.05 = 256,175.60 : x
  2. Step 2: Convert to fraction form
    368,368.70/552,553.05 = 256,175.60/x
  3. Step 3: Cross multiply
    368,368.70x = 552,553.05 × 256,175.60
  4. Step 4: Simplify right side
    368,368.70x = 141,550,609,115.58
  5. Step 5: Solve for x
    x = 141,550,609,115.58/368,368.70
  6. Step 6: Final answer
    x = 384,263.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.