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Finding the Fourth Proportional to 548,799.07, 822,725.57 and 212,076

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Solution

The fourth proportional to 548,799.07, 822,725.57 and 212,076 is: 317,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,799.07 : 822,725.57 = 212,076 : x
  2. Step 2: Convert to fraction form
    548,799.07/822,725.57 = 212,076/x
  3. Step 3: Cross multiply
    548,799.07x = 822,725.57 × 212,076
  4. Step 4: Simplify right side
    548,799.07x = 174,480,347,983.32
  5. Step 5: Solve for x
    x = 174,480,347,983.32/548,799.07
  6. Step 6: Final answer
    x = 317,931.20

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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.