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Finding the Fourth Proportional to 445,459.37, 668,154.20 and 125,598.32

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Solution

The fourth proportional to 445,459.37, 668,154.20 and 125,598.32 is: 188,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,459.37 : 668,154.20 = 125,598.32 : x
  2. Step 2: Convert to fraction form
    445,459.37/668,154.20 = 125,598.32/x
  3. Step 3: Cross multiply
    445,459.37x = 668,154.20 × 125,598.32
  4. Step 4: Simplify right side
    445,459.37x = 83,919,046,063.34
  5. Step 5: Solve for x
    x = 83,919,046,063.34/445,459.37
  6. Step 6: Final answer
    x = 188,387.65

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1.5x scale

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.