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Finding the Fourth Proportional to 622,215.80, 933,326.60 and 217,406.32

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Solution

The fourth proportional to 622,215.80, 933,326.60 and 217,406.32 is: 326,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,215.80 : 933,326.60 = 217,406.32 : x
  2. Step 2: Convert to fraction form
    622,215.80/933,326.60 = 217,406.32/x
  3. Step 3: Cross multiply
    622,215.80x = 933,326.60 × 217,406.32
  4. Step 4: Simplify right side
    622,215.80x = 202,911,101,464.11
  5. Step 5: Solve for x
    x = 202,911,101,464.11/622,215.80
  6. Step 6: Final answer
    x = 326,110.49

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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.