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Finding the Fourth Proportional to 277,905.57, 383,468.31 and 157,045.89

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Solution

The fourth proportional to 277,905.57, 383,468.31 and 157,045.89 is: 216,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,905.57 : 383,468.31 = 157,045.89 : x
  2. Step 2: Convert to fraction form
    277,905.57/383,468.31 = 157,045.89/x
  3. Step 3: Cross multiply
    277,905.57x = 383,468.31 × 157,045.89
  4. Step 4: Simplify right side
    277,905.57x = 60,222,122,030.75
  5. Step 5: Solve for x
    x = 60,222,122,030.75/277,905.57
  6. Step 6: Final answer
    x = 216,699.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.