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Finding the Fourth Proportional to 388,957.95, 583,226.33 and 175,476.38

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Solution

The fourth proportional to 388,957.95, 583,226.33 and 175,476.38 is: 263,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,957.95 : 583,226.33 = 175,476.38 : x
  2. Step 2: Convert to fraction form
    388,957.95/583,226.33 = 175,476.38/x
  3. Step 3: Cross multiply
    388,957.95x = 583,226.33 × 175,476.38
  4. Step 4: Simplify right side
    388,957.95x = 102,342,441,315.57
  5. Step 5: Solve for x
    x = 102,342,441,315.57/388,957.95
  6. Step 6: Final answer
    x = 263,119.55

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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.