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Finding the Fourth Proportional to 331,970.72, 458,158.32 and 188,752.22

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Solution

The fourth proportional to 331,970.72, 458,158.32 and 188,752.22 is: 260,500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,970.72 : 458,158.32 = 188,752.22 : x
  2. Step 2: Convert to fraction form
    331,970.72/458,158.32 = 188,752.22/x
  3. Step 3: Cross multiply
    331,970.72x = 458,158.32 × 188,752.22
  4. Step 4: Simplify right side
    331,970.72x = 86,478,400,011.47
  5. Step 5: Solve for x
    x = 86,478,400,011.47/331,970.72
  6. Step 6: Final answer
    x = 260,500.08

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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.