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Finding the Fourth Proportional to 475,712.28, 656,483.22 and 260,847.90

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Solution

The fourth proportional to 475,712.28, 656,483.22 and 260,847.90 is: 359,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,712.28 : 656,483.22 = 260,847.90 : x
  2. Step 2: Convert to fraction form
    475,712.28/656,483.22 = 260,847.90/x
  3. Step 3: Cross multiply
    475,712.28x = 656,483.22 × 260,847.90
  4. Step 4: Simplify right side
    475,712.28x = 171,242,269,322.24
  5. Step 5: Solve for x
    x = 171,242,269,322.24/475,712.28
  6. Step 6: Final answer
    x = 359,970.25

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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.