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Finding the Fourth Proportional to 277,642.40, 416,156.40 and 153,072.80

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Solution

The fourth proportional to 277,642.40, 416,156.40 and 153,072.80 is: 229,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,642.40 : 416,156.40 = 153,072.80 : x
  2. Step 2: Convert to fraction form
    277,642.40/416,156.40 = 153,072.80/x
  3. Step 3: Cross multiply
    277,642.40x = 416,156.40 × 153,072.80
  4. Step 4: Simplify right side
    277,642.40x = 63,702,225,385.92
  5. Step 5: Solve for x
    x = 63,702,225,385.92/277,642.40
  6. Step 6: Final answer
    x = 229,439.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.