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Finding the Fourth Proportional to 1,213,738.02, 1,674,962.03 and 662,458.82

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Solution

The fourth proportional to 1,213,738.02, 1,674,962.03 and 662,458.82 is: 914,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,738.02 : 1,674,962.03 = 662,458.82 : x
  2. Step 2: Convert to fraction form
    1,213,738.02/1,674,962.03 = 662,458.82/x
  3. Step 3: Cross multiply
    1,213,738.02x = 1,674,962.03 × 662,458.82
  4. Step 4: Simplify right side
    1,213,738.02x = 1,109,593,358,251.50
  5. Step 5: Solve for x
    x = 1,109,593,358,251.50/1,213,738.02
  6. Step 6: Final answer
    x = 914,195.11

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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.