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Finding the Fourth Proportional to 539,885.16, 810,320.94 and 273,829.32

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Solution

The fourth proportional to 539,885.16, 810,320.94 and 273,829.32 is: 410,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,885.16 : 810,320.94 = 273,829.32 : x
  2. Step 2: Convert to fraction form
    539,885.16/810,320.94 = 273,829.32/x
  3. Step 3: Cross multiply
    539,885.16x = 810,320.94 × 273,829.32
  4. Step 4: Simplify right side
    539,885.16x = 221,889,631,981.96
  5. Step 5: Solve for x
    x = 221,889,631,981.96/539,885.16
  6. Step 6: Final answer
    x = 410,994.13

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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.