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Finding the Fourth Proportional to 441,627.60, 661,663.80 and 362,312.40

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Solution

The fourth proportional to 441,627.60, 661,663.80 and 362,312.40 is: 542,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,627.60 : 661,663.80 = 362,312.40 : x
  2. Step 2: Convert to fraction form
    441,627.60/661,663.80 = 362,312.40/x
  3. Step 3: Cross multiply
    441,627.60x = 661,663.80 × 362,312.40
  4. Step 4: Simplify right side
    441,627.60x = 239,728,999,371.12
  5. Step 5: Solve for x
    x = 239,728,999,371.12/441,627.60
  6. Step 6: Final answer
    x = 542,830.65

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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.