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Finding the Fourth Proportional to 503,736.68, 694,931.94 and 340,340.76

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Solution

The fourth proportional to 503,736.68, 694,931.94 and 340,340.76 is: 469,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,736.68 : 694,931.94 = 340,340.76 : x
  2. Step 2: Convert to fraction form
    503,736.68/694,931.94 = 340,340.76/x
  3. Step 3: Cross multiply
    503,736.68x = 694,931.94 × 340,340.76
  4. Step 4: Simplify right side
    503,736.68x = 236,513,664,607.87
  5. Step 5: Solve for x
    x = 236,513,664,607.87/503,736.68
  6. Step 6: Final answer
    x = 469,518.45

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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.