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Finding the Fourth Proportional to 372,457.17, 514,002.56 and 211,319.01

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Solution

The fourth proportional to 372,457.17, 514,002.56 and 211,319.01 is: 291,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,457.17 : 514,002.56 = 211,319.01 : x
  2. Step 2: Convert to fraction form
    372,457.17/514,002.56 = 211,319.01/x
  3. Step 3: Cross multiply
    372,457.17x = 514,002.56 × 211,319.01
  4. Step 4: Simplify right side
    372,457.17x = 108,618,511,060.07
  5. Step 5: Solve for x
    x = 108,618,511,060.07/372,457.17
  6. Step 6: Final answer
    x = 291,626.85

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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.