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Finding the Fourth Proportional to 424,684.48, 585,820.80 and 265,432

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Solution

The fourth proportional to 424,684.48, 585,820.80 and 265,432 is: 366,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,684.48 : 585,820.80 = 265,432 : x
  2. Step 2: Convert to fraction form
    424,684.48/585,820.80 = 265,432/x
  3. Step 3: Cross multiply
    424,684.48x = 585,820.80 × 265,432
  4. Step 4: Simplify right side
    424,684.48x = 155,495,586,585.60
  5. Step 5: Solve for x
    x = 155,495,586,585.60/424,684.48
  6. Step 6: Final answer
    x = 366,143.79

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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.