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Finding the Fourth Proportional to 521,303.37, 719,184.83 and 317,190.66

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Solution

The fourth proportional to 521,303.37, 719,184.83 and 317,190.66 is: 437,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,303.37 : 719,184.83 = 317,190.66 : x
  2. Step 2: Convert to fraction form
    521,303.37/719,184.83 = 317,190.66/x
  3. Step 3: Cross multiply
    521,303.37x = 719,184.83 × 317,190.66
  4. Step 4: Simplify right side
    521,303.37x = 228,118,709,303.73
  5. Step 5: Solve for x
    x = 228,118,709,303.73/521,303.37
  6. Step 6: Final answer
    x = 437,593.01

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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.