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Finding the Fourth Proportional to 365,415.40, 548,123.10 and 178,791.40

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Solution

The fourth proportional to 365,415.40, 548,123.10 and 178,791.40 is: 268,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,415.40 : 548,123.10 = 178,791.40 : x
  2. Step 2: Convert to fraction form
    365,415.40/548,123.10 = 178,791.40/x
  3. Step 3: Cross multiply
    365,415.40x = 548,123.10 × 178,791.40
  4. Step 4: Simplify right side
    365,415.40x = 97,999,696,421.34
  5. Step 5: Solve for x
    x = 97,999,696,421.34/365,415.40
  6. Step 6: Final answer
    x = 268,187.10

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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.