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Finding the Fourth Proportional to 424,368.64, 585,635.86 and 243,096.42

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Solution

The fourth proportional to 424,368.64, 585,635.86 and 243,096.42 is: 335,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,368.64 : 585,635.86 = 243,096.42 : x
  2. Step 2: Convert to fraction form
    424,368.64/585,635.86 = 243,096.42/x
  3. Step 3: Cross multiply
    424,368.64x = 585,635.86 × 243,096.42
  4. Step 4: Simplify right side
    424,368.64x = 142,365,980,989.62
  5. Step 5: Solve for x
    x = 142,365,980,989.62/424,368.64
  6. Step 6: Final answer
    x = 335,477.15

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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.