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Finding the Fourth Proportional to 277,455.34, 382,889.68 and 156,601.72

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Solution

The fourth proportional to 277,455.34, 382,889.68 and 156,601.72 is: 216,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,455.34 : 382,889.68 = 156,601.72 : x
  2. Step 2: Convert to fraction form
    277,455.34/382,889.68 = 156,601.72/x
  3. Step 3: Cross multiply
    277,455.34x = 382,889.68 × 156,601.72
  4. Step 4: Simplify right side
    277,455.34x = 59,961,183,426.24
  5. Step 5: Solve for x
    x = 59,961,183,426.24/277,455.34
  6. Step 6: Final answer
    x = 216,111.12

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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.