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Finding the Fourth Proportional to 675,314.72, 931,871.76 and 373,502.24

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Solution

The fourth proportional to 675,314.72, 931,871.76 and 373,502.24 is: 515,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,314.72 : 931,871.76 = 373,502.24 : x
  2. Step 2: Convert to fraction form
    675,314.72/931,871.76 = 373,502.24/x
  3. Step 3: Cross multiply
    675,314.72x = 931,871.76 × 373,502.24
  4. Step 4: Simplify right side
    675,314.72x = 348,056,189,752.74
  5. Step 5: Solve for x
    x = 348,056,189,752.74/675,314.72
  6. Step 6: Final answer
    x = 515,398.49

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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.