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Finding the Fourth Proportional to 439,077.92, 605,894.10 and 266,971.98

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Solution

The fourth proportional to 439,077.92, 605,894.10 and 266,971.98 is: 368,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,077.92 : 605,894.10 = 266,971.98 : x
  2. Step 2: Convert to fraction form
    439,077.92/605,894.10 = 266,971.98/x
  3. Step 3: Cross multiply
    439,077.92x = 605,894.10 × 266,971.98
  4. Step 4: Simplify right side
    439,077.92x = 161,756,747,547.32
  5. Step 5: Solve for x
    x = 161,756,747,547.32/439,077.92
  6. Step 6: Final answer
    x = 368,401.01

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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.