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Finding the Fourth Proportional to 277,745.32, 383,312.14 and 156,908.79

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Solution

The fourth proportional to 277,745.32, 383,312.14 and 156,908.79 is: 216,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,745.32 : 383,312.14 = 156,908.79 : x
  2. Step 2: Convert to fraction form
    277,745.32/383,312.14 = 156,908.79/x
  3. Step 3: Cross multiply
    277,745.32x = 383,312.14 × 156,908.79
  4. Step 4: Simplify right side
    277,745.32x = 60,145,042,163.15
  5. Step 5: Solve for x
    x = 60,145,042,163.15/277,745.32
  6. Step 6: Final answer
    x = 216,547.45

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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.