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Finding the Fourth Proportional to 474,716.58, 712,566.95 and 318,039.90

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Solution

The fourth proportional to 474,716.58, 712,566.95 and 318,039.90 is: 477,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,716.58 : 712,566.95 = 318,039.90 : x
  2. Step 2: Convert to fraction form
    474,716.58/712,566.95 = 318,039.90/x
  3. Step 3: Cross multiply
    474,716.58x = 712,566.95 × 318,039.90
  4. Step 4: Simplify right side
    474,716.58x = 226,624,719,931.11
  5. Step 5: Solve for x
    x = 226,624,719,931.11/474,716.58
  6. Step 6: Final answer
    x = 477,389.52

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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.