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Finding the Fourth Proportional to 674,805.76, 931,284.48 and 373,027.84

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Solution

The fourth proportional to 674,805.76, 931,284.48 and 373,027.84 is: 514,807.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,805.76 : 931,284.48 = 373,027.84 : x
  2. Step 2: Convert to fraction form
    674,805.76/931,284.48 = 373,027.84/x
  3. Step 3: Cross multiply
    674,805.76x = 931,284.48 × 373,027.84
  4. Step 4: Simplify right side
    674,805.76x = 347,395,037,999.92
  5. Step 5: Solve for x
    x = 347,395,037,999.92/674,805.76
  6. Step 6: Final answer
    x = 514,807.46

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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.