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Finding the Fourth Proportional to 539,873.84, 810,308.95 and 273,821.18

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Solution

The fourth proportional to 539,873.84, 810,308.95 and 273,821.18 is: 410,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,873.84 : 810,308.95 = 273,821.18 : x
  2. Step 2: Convert to fraction form
    539,873.84/810,308.95 = 273,821.18/x
  3. Step 3: Cross multiply
    539,873.84x = 810,308.95 × 273,821.18
  4. Step 4: Simplify right side
    539,873.84x = 221,879,748,117.46
  5. Step 5: Solve for x
    x = 221,879,748,117.46/539,873.84
  6. Step 6: Final answer
    x = 410,984.44

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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.