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Finding the Fourth Proportional to 3,314,703.88, 4,972,041.64 and 918,541.63

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Solution

The fourth proportional to 3,314,703.88, 4,972,041.64 and 918,541.63 is: 1,377,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314,703.88 : 4,972,041.64 = 918,541.63 : x
  2. Step 2: Convert to fraction form
    3,314,703.88/4,972,041.64 = 918,541.63/x
  3. Step 3: Cross multiply
    3,314,703.88x = 4,972,041.64 × 918,541.63
  4. Step 4: Simplify right side
    3,314,703.88x = 4,567,027,202,980.56
  5. Step 5: Solve for x
    x = 4,567,027,202,980.56/3,314,703.88
  6. Step 6: Final answer
    x = 1,377,808.51

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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.