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Finding the Fourth Proportional to 617,966.70, 926,258.85 and 262,920.30

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Solution

The fourth proportional to 617,966.70, 926,258.85 and 262,920.30 is: 394,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,966.70 : 926,258.85 = 262,920.30 : x
  2. Step 2: Convert to fraction form
    617,966.70/926,258.85 = 262,920.30/x
  3. Step 3: Cross multiply
    617,966.70x = 926,258.85 × 262,920.30
  4. Step 4: Simplify right side
    617,966.70x = 243,532,254,719.66
  5. Step 5: Solve for x
    x = 243,532,254,719.66/617,966.70
  6. Step 6: Final answer
    x = 394,086.37

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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.