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Finding the Fourth Proportional to 535,220.40, 801,712.80 and 251,153.40

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Solution

The fourth proportional to 535,220.40, 801,712.80 and 251,153.40 is: 376,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,220.40 : 801,712.80 = 251,153.40 : x
  2. Step 2: Convert to fraction form
    535,220.40/801,712.80 = 251,153.40/x
  3. Step 3: Cross multiply
    535,220.40x = 801,712.80 × 251,153.40
  4. Step 4: Simplify right side
    535,220.40x = 201,352,895,543.52
  5. Step 5: Solve for x
    x = 201,352,895,543.52/535,220.40
  6. Step 6: Final answer
    x = 376,205.57

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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.