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Finding the Fourth Proportional to 277,339.36, 382,728.40 and 156,506.32

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Solution

The fourth proportional to 277,339.36, 382,728.40 and 156,506.32 is: 215,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,339.36 : 382,728.40 = 156,506.32 : x
  2. Step 2: Convert to fraction form
    277,339.36/382,728.40 = 156,506.32/x
  3. Step 3: Cross multiply
    277,339.36x = 382,728.40 × 156,506.32
  4. Step 4: Simplify right side
    277,339.36x = 59,899,413,443.49
  5. Step 5: Solve for x
    x = 59,899,413,443.49/277,339.36
  6. Step 6: Final answer
    x = 215,978.77

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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.