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Finding the Fourth Proportional to 277,311.98, 382,681.71 and 156,451.65

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Solution

The fourth proportional to 277,311.98, 382,681.71 and 156,451.65 is: 215,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,311.98 : 382,681.71 = 156,451.65 : x
  2. Step 2: Convert to fraction form
    277,311.98/382,681.71 = 156,451.65/x
  3. Step 3: Cross multiply
    277,311.98x = 382,681.71 × 156,451.65
  4. Step 4: Simplify right side
    277,311.98x = 59,871,184,954.32
  5. Step 5: Solve for x
    x = 59,871,184,954.32/277,311.98
  6. Step 6: Final answer
    x = 215,898.30

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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.