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Finding the Fourth Proportional to 368,328.48, 552,492.72 and 243,640.32

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Solution

The fourth proportional to 368,328.48, 552,492.72 and 243,640.32 is: 365,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,328.48 : 552,492.72 = 243,640.32 : x
  2. Step 2: Convert to fraction form
    368,328.48/552,492.72 = 243,640.32/x
  3. Step 3: Cross multiply
    368,328.48x = 552,492.72 × 243,640.32
  4. Step 4: Simplify right side
    368,328.48x = 134,609,503,098.47
  5. Step 5: Solve for x
    x = 134,609,503,098.47/368,328.48
  6. Step 6: Final answer
    x = 365,460.48

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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.