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Finding the Fourth Proportional to 503,922.80, 754,847.40 and 346,329.20

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Solution

The fourth proportional to 503,922.80, 754,847.40 and 346,329.20 is: 518,781.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,922.80 : 754,847.40 = 346,329.20 : x
  2. Step 2: Convert to fraction form
    503,922.80/754,847.40 = 346,329.20/x
  3. Step 3: Cross multiply
    503,922.80x = 754,847.40 × 346,329.20
  4. Step 4: Simplify right side
    503,922.80x = 261,425,696,164.08
  5. Step 5: Solve for x
    x = 261,425,696,164.08/503,922.80
  6. Step 6: Final answer
    x = 518,781.24

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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.