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Finding the Fourth Proportional to 591,642.80, 888,047.40 and 292,461.20

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Solution

The fourth proportional to 591,642.80, 888,047.40 and 292,461.20 is: 438,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,642.80 : 888,047.40 = 292,461.20 : x
  2. Step 2: Convert to fraction form
    591,642.80/888,047.40 = 292,461.20/x
  3. Step 3: Cross multiply
    591,642.80x = 888,047.40 × 292,461.20
  4. Step 4: Simplify right side
    591,642.80x = 259,719,408,260.88
  5. Step 5: Solve for x
    x = 259,719,408,260.88/591,642.80
  6. Step 6: Final answer
    x = 438,980.09

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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.