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Finding the Fourth Proportional to 605,643.90, 908,137.80 and 250,693.80

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Solution

The fourth proportional to 605,643.90, 908,137.80 and 250,693.80 is: 375,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,643.90 : 908,137.80 = 250,693.80 : x
  2. Step 2: Convert to fraction form
    605,643.90/908,137.80 = 250,693.80/x
  3. Step 3: Cross multiply
    605,643.90x = 908,137.80 × 250,693.80
  4. Step 4: Simplify right side
    605,643.90x = 227,664,516,005.64
  5. Step 5: Solve for x
    x = 227,664,516,005.64/605,643.90
  6. Step 6: Final answer
    x = 375,904.91

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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.