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Finding the Fourth Proportional to 417,405.52, 573,894.04 and 371,656.72

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Solution

The fourth proportional to 417,405.52, 573,894.04 and 371,656.72 is: 510,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,405.52 : 573,894.04 = 371,656.72 : x
  2. Step 2: Convert to fraction form
    417,405.52/573,894.04 = 371,656.72/x
  3. Step 3: Cross multiply
    417,405.52x = 573,894.04 × 371,656.72
  4. Step 4: Simplify right side
    417,405.52x = 213,291,576,533.95
  5. Step 5: Solve for x
    x = 213,291,576,533.95/417,405.52
  6. Step 6: Final answer
    x = 510,993.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.