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Finding the Fourth Proportional to 277,312.83, 382,601.79 and 154,785.21

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Solution

The fourth proportional to 277,312.83, 382,601.79 and 154,785.21 is: 213,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,312.83 : 382,601.79 = 154,785.21 : x
  2. Step 2: Convert to fraction form
    277,312.83/382,601.79 = 154,785.21/x
  3. Step 3: Cross multiply
    277,312.83x = 382,601.79 × 154,785.21
  4. Step 4: Simplify right side
    277,312.83x = 59,221,098,411.53
  5. Step 5: Solve for x
    x = 59,221,098,411.53/277,312.83
  6. Step 6: Final answer
    x = 213,553.40

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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.