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Finding the Fourth Proportional to 492,099.86, 679,094.70 and 277,308.92

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Solution

The fourth proportional to 492,099.86, 679,094.70 and 277,308.92 is: 382,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,099.86 : 679,094.70 = 277,308.92 : x
  2. Step 2: Convert to fraction form
    492,099.86/679,094.70 = 277,308.92/x
  3. Step 3: Cross multiply
    492,099.86x = 679,094.70 × 277,308.92
  4. Step 4: Simplify right side
    492,099.86x = 188,319,017,834.72
  5. Step 5: Solve for x
    x = 188,319,017,834.72/492,099.86
  6. Step 6: Final answer
    x = 382,684.56

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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.