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Finding the Fourth Proportional to 628,062.36, 866,420.92 and 373,233.12

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Solution

The fourth proportional to 628,062.36, 866,420.92 and 373,233.12 is: 514,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,062.36 : 866,420.92 = 373,233.12 : x
  2. Step 2: Convert to fraction form
    628,062.36/866,420.92 = 373,233.12/x
  3. Step 3: Cross multiply
    628,062.36x = 866,420.92 × 373,233.12
  4. Step 4: Simplify right side
    628,062.36x = 323,376,983,204.87
  5. Step 5: Solve for x
    x = 323,376,983,204.87/628,062.36
  6. Step 6: Final answer
    x = 514,880.37

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1.5x scale

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.