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Finding the Fourth Proportional to 377,718.80, 566,578.20 and 355,557.20

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Solution

The fourth proportional to 377,718.80, 566,578.20 and 355,557.20 is: 533,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,718.80 : 566,578.20 = 355,557.20 : x
  2. Step 2: Convert to fraction form
    377,718.80/566,578.20 = 355,557.20/x
  3. Step 3: Cross multiply
    377,718.80x = 566,578.20 × 355,557.20
  4. Step 4: Simplify right side
    377,718.80x = 201,450,958,373.04
  5. Step 5: Solve for x
    x = 201,450,958,373.04/377,718.80
  6. Step 6: Final answer
    x = 533,335.80

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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.