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Finding the Fourth Proportional to 628,453.60, 867,267.84 and 341,973.76

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Solution

The fourth proportional to 628,453.60, 867,267.84 and 341,973.76 is: 471,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,453.60 : 867,267.84 = 341,973.76 : x
  2. Step 2: Convert to fraction form
    628,453.60/867,267.84 = 341,973.76/x
  3. Step 3: Cross multiply
    628,453.60x = 867,267.84 × 341,973.76
  4. Step 4: Simplify right side
    628,453.60x = 296,582,844,171.88
  5. Step 5: Solve for x
    x = 296,582,844,171.88/628,453.60
  6. Step 6: Final answer
    x = 471,924.81

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Double scale
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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.