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Finding the Fourth Proportional to 426,223.59, 638,995.87 and 246,104.76

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Solution

The fourth proportional to 426,223.59, 638,995.87 and 246,104.76 is: 368,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,223.59 : 638,995.87 = 246,104.76 : x
  2. Step 2: Convert to fraction form
    426,223.59/638,995.87 = 246,104.76/x
  3. Step 3: Cross multiply
    426,223.59x = 638,995.87 × 246,104.76
  4. Step 4: Simplify right side
    426,223.59x = 157,259,927,931.21
  5. Step 5: Solve for x
    x = 157,259,927,931.21/426,223.59
  6. Step 6: Final answer
    x = 368,961.11

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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.