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Finding the Fourth Proportional to 621,442.48, 932,578.68 and 341,156.56

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Solution

The fourth proportional to 621,442.48, 932,578.68 and 341,156.56 is: 511,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,442.48 : 932,578.68 = 341,156.56 : x
  2. Step 2: Convert to fraction form
    621,442.48/932,578.68 = 341,156.56/x
  3. Step 3: Cross multiply
    621,442.48x = 932,578.68 × 341,156.56
  4. Step 4: Simplify right side
    621,442.48x = 318,155,334,398.14
  5. Step 5: Solve for x
    x = 318,155,334,398.14/621,442.48
  6. Step 6: Final answer
    x = 511,962.64

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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.