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Finding the Fourth Proportional to 469,130.58, 647,460.15 and 262,410.45

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Solution

The fourth proportional to 469,130.58, 647,460.15 and 262,410.45 is: 362,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,130.58 : 647,460.15 = 262,410.45 : x
  2. Step 2: Convert to fraction form
    469,130.58/647,460.15 = 262,410.45/x
  3. Step 3: Cross multiply
    469,130.58x = 647,460.15 × 262,410.45
  4. Step 4: Simplify right side
    469,130.58x = 169,900,309,318.57
  5. Step 5: Solve for x
    x = 169,900,309,318.57/469,130.58
  6. Step 6: Final answer
    x = 362,159.95

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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.