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Finding the Fourth Proportional to 622,856.37, 934,284.62 and 356,428.51

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Solution

The fourth proportional to 622,856.37, 934,284.62 and 356,428.51 is: 534,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,856.37 : 934,284.62 = 356,428.51 : x
  2. Step 2: Convert to fraction form
    622,856.37/934,284.62 = 356,428.51/x
  3. Step 3: Cross multiply
    622,856.37x = 934,284.62 × 356,428.51
  4. Step 4: Simplify right side
    622,856.37x = 333,005,673,577.88
  5. Step 5: Solve for x
    x = 333,005,673,577.88/622,856.37
  6. Step 6: Final answer
    x = 534,642.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.