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Finding the Fourth Proportional to 453,325.60, 679,988.40 and 272,922.40

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Solution

The fourth proportional to 453,325.60, 679,988.40 and 272,922.40 is: 409,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,325.60 : 679,988.40 = 272,922.40 : x
  2. Step 2: Convert to fraction form
    453,325.60/679,988.40 = 272,922.40/x
  3. Step 3: Cross multiply
    453,325.60x = 679,988.40 × 272,922.40
  4. Step 4: Simplify right side
    453,325.60x = 185,584,066,100.16
  5. Step 5: Solve for x
    x = 185,584,066,100.16/453,325.60
  6. Step 6: Final answer
    x = 409,383.60

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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.