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Finding the Fourth Proportional to 501,900.72, 692,623.44 and 272,457.84

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Solution

The fourth proportional to 501,900.72, 692,623.44 and 272,457.84 is: 375,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,900.72 : 692,623.44 = 272,457.84 : x
  2. Step 2: Convert to fraction form
    501,900.72/692,623.44 = 272,457.84/x
  3. Step 3: Cross multiply
    501,900.72x = 692,623.44 × 272,457.84
  4. Step 4: Simplify right side
    501,900.72x = 188,710,686,395.77
  5. Step 5: Solve for x
    x = 188,710,686,395.77/501,900.72
  6. Step 6: Final answer
    x = 375,992.06

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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.