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Finding the Fourth Proportional to 372,681, 514,297.62 and 211,566.60

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Solution

The fourth proportional to 372,681, 514,297.62 and 211,566.60 is: 291,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,681 : 514,297.62 = 211,566.60 : x
  2. Step 2: Convert to fraction form
    372,681/514,297.62 = 211,566.60/x
  3. Step 3: Cross multiply
    372,681x = 514,297.62 × 211,566.60
  4. Step 4: Simplify right side
    372,681x = 108,808,198,851.49
  5. Step 5: Solve for x
    x = 108,808,198,851.49/372,681
  6. Step 6: Final answer
    x = 291,960.68

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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.