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Finding the Fourth Proportional to 328,036.60, 492,054.90 and 216,062.20

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Solution

The fourth proportional to 328,036.60, 492,054.90 and 216,062.20 is: 324,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,036.60 : 492,054.90 = 216,062.20 : x
  2. Step 2: Convert to fraction form
    328,036.60/492,054.90 = 216,062.20/x
  3. Step 3: Cross multiply
    328,036.60x = 492,054.90 × 216,062.20
  4. Step 4: Simplify right side
    328,036.60x = 106,314,464,214.78
  5. Step 5: Solve for x
    x = 106,314,464,214.78/328,036.60
  6. Step 6: Final answer
    x = 324,093.30

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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.