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Finding the Fourth Proportional to 1,566,658.64, 2,161,964.04 and 922,002.32

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Solution

The fourth proportional to 1,566,658.64, 2,161,964.04 and 922,002.32 is: 1,272,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566,658.64 : 2,161,964.04 = 922,002.32 : x
  2. Step 2: Convert to fraction form
    1,566,658.64/2,161,964.04 = 922,002.32/x
  3. Step 3: Cross multiply
    1,566,658.64x = 2,161,964.04 × 922,002.32
  4. Step 4: Simplify right side
    1,566,658.64x = 1,993,335,860,636.57
  5. Step 5: Solve for x
    x = 1,993,335,860,636.57/1,566,658.64
  6. Step 6: Final answer
    x = 1,272,348.56

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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.