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Finding the Fourth Proportional to 292,803.70, 439,212.84 and 82,440.22

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Solution

The fourth proportional to 292,803.70, 439,212.84 and 82,440.22 is: 123,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,803.70 : 439,212.84 = 82,440.22 : x
  2. Step 2: Convert to fraction form
    292,803.70/439,212.84 = 82,440.22/x
  3. Step 3: Cross multiply
    292,803.70x = 439,212.84 × 82,440.22
  4. Step 4: Simplify right side
    292,803.70x = 36,208,803,156.42
  5. Step 5: Solve for x
    x = 36,208,803,156.42/292,803.70
  6. Step 6: Final answer
    x = 123,662.38

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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.