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Finding the Fourth Proportional to 451,437.74, 623,028.66 and 257,874.42

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Solution

The fourth proportional to 451,437.74, 623,028.66 and 257,874.42 is: 355,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,437.74 : 623,028.66 = 257,874.42 : x
  2. Step 2: Convert to fraction form
    451,437.74/623,028.66 = 257,874.42/x
  3. Step 3: Cross multiply
    451,437.74x = 623,028.66 × 257,874.42
  4. Step 4: Simplify right side
    451,437.74x = 160,663,154,340.88
  5. Step 5: Solve for x
    x = 160,663,154,340.88/451,437.74
  6. Step 6: Final answer
    x = 355,892.16

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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.