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Finding the Fourth Proportional to 439,430.61, 606,459.44 and 267,360.79

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Solution

The fourth proportional to 439,430.61, 606,459.44 and 267,360.79 is: 368,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,430.61 : 606,459.44 = 267,360.79 : x
  2. Step 2: Convert to fraction form
    439,430.61/606,459.44 = 267,360.79/x
  3. Step 3: Cross multiply
    439,430.61x = 606,459.44 × 267,360.79
  4. Step 4: Simplify right side
    439,430.61x = 162,143,474,981.36
  5. Step 5: Solve for x
    x = 162,143,474,981.36/439,430.61
  6. Step 6: Final answer
    x = 368,985.39

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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.