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Finding the Fourth Proportional to 292,940.65, 439,410.98 and 277,981.57

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Solution

The fourth proportional to 292,940.65, 439,410.98 and 277,981.57 is: 416,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,940.65 : 439,410.98 = 277,981.57 : x
  2. Step 2: Convert to fraction form
    292,940.65/439,410.98 = 277,981.57/x
  3. Step 3: Cross multiply
    292,940.65x = 439,410.98 × 277,981.57
  4. Step 4: Simplify right side
    292,940.65x = 122,148,153,776.21
  5. Step 5: Solve for x
    x = 122,148,153,776.21/292,940.65
  6. Step 6: Final answer
    x = 416,972.36

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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.