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Finding the Fourth Proportional to 374,978.16, 517,389.84 and 222,064.38

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Solution

The fourth proportional to 374,978.16, 517,389.84 and 222,064.38 is: 306,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,978.16 : 517,389.84 = 222,064.38 : x
  2. Step 2: Convert to fraction form
    374,978.16/517,389.84 = 222,064.38/x
  3. Step 3: Cross multiply
    374,978.16x = 517,389.84 × 222,064.38
  4. Step 4: Simplify right side
    374,978.16x = 114,893,854,037.90
  5. Step 5: Solve for x
    x = 114,893,854,037.90/374,978.16
  6. Step 6: Final answer
    x = 306,401.46

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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.