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Finding the Fourth Proportional to 393,840.04, 543,492.30 and 224,070.52

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Solution

The fourth proportional to 393,840.04, 543,492.30 and 224,070.52 is: 309,213.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,840.04 : 543,492.30 = 224,070.52 : x
  2. Step 2: Convert to fraction form
    393,840.04/543,492.30 = 224,070.52/x
  3. Step 3: Cross multiply
    393,840.04x = 543,492.30 × 224,070.52
  4. Step 4: Simplify right side
    393,840.04x = 121,780,602,277.00
  5. Step 5: Solve for x
    x = 121,780,602,277.00/393,840.04
  6. Step 6: Final answer
    x = 309,213.36

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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.