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Finding the Fourth Proportional to 328,816.60, 493,224.90 and 222,528.40

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Solution

The fourth proportional to 328,816.60, 493,224.90 and 222,528.40 is: 333,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,816.60 : 493,224.90 = 222,528.40 : x
  2. Step 2: Convert to fraction form
    328,816.60/493,224.90 = 222,528.40/x
  3. Step 3: Cross multiply
    328,816.60x = 493,224.90 × 222,528.40
  4. Step 4: Simplify right side
    328,816.60x = 109,756,547,837.16
  5. Step 5: Solve for x
    x = 109,756,547,837.16/328,816.60
  6. Step 6: Final answer
    x = 333,792.60

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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.