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Finding the Fourth Proportional to 621,851.40, 932,085.90 and 341,569.80

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Solution

The fourth proportional to 621,851.40, 932,085.90 and 341,569.80 is: 511,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,851.40 : 932,085.90 = 341,569.80 : x
  2. Step 2: Convert to fraction form
    621,851.40/932,085.90 = 341,569.80/x
  3. Step 3: Cross multiply
    621,851.40x = 932,085.90 × 341,569.80
  4. Step 4: Simplify right side
    621,851.40x = 318,372,394,445.82
  5. Step 5: Solve for x
    x = 318,372,394,445.82/621,851.40
  6. Step 6: Final answer
    x = 511,975.04

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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.