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Finding the Fourth Proportional to 424,641.45, 585,938.28 and 243,318.51

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Solution

The fourth proportional to 424,641.45, 585,938.28 and 243,318.51 is: 335,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,641.45 : 585,938.28 = 243,318.51 : x
  2. Step 2: Convert to fraction form
    424,641.45/585,938.28 = 243,318.51/x
  3. Step 3: Cross multiply
    424,641.45x = 585,938.28 × 243,318.51
  4. Step 4: Simplify right side
    424,641.45x = 142,569,629,241.56
  5. Step 5: Solve for x
    x = 142,569,629,241.56/424,641.45
  6. Step 6: Final answer
    x = 335,741.20

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1.5x scale

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.