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Finding the Fourth Proportional to 423,918.60, 635,877.90 and 366,837.90

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Solution

The fourth proportional to 423,918.60, 635,877.90 and 366,837.90 is: 550,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,918.60 : 635,877.90 = 366,837.90 : x
  2. Step 2: Convert to fraction form
    423,918.60/635,877.90 = 366,837.90/x
  3. Step 3: Cross multiply
    423,918.60x = 635,877.90 × 366,837.90
  4. Step 4: Simplify right side
    423,918.60x = 233,264,113,492.41
  5. Step 5: Solve for x
    x = 233,264,113,492.41/423,918.60
  6. Step 6: Final answer
    x = 550,256.85

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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.