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Finding the Fourth Proportional to 546,071.52, 818,545.44 and 209,032.80

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Solution

The fourth proportional to 546,071.52, 818,545.44 and 209,032.80 is: 313,334.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,071.52 : 818,545.44 = 209,032.80 : x
  2. Step 2: Convert to fraction form
    546,071.52/818,545.44 = 209,032.80/x
  3. Step 3: Cross multiply
    546,071.52x = 818,545.44 × 209,032.80
  4. Step 4: Simplify right side
    546,071.52x = 171,102,845,250.43
  5. Step 5: Solve for x
    x = 171,102,845,250.43/546,071.52
  6. Step 6: Final answer
    x = 313,334.13

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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.